The nutrients reach the protuberance via blood vessels. Do this on a daily basis for how to get rid of keratosis pilaris. Still, further improvement of this product through chemical testing and further study of the chemical interactions of hydrogen peroxide and ROS may lead to an even safer and more efficient treatment of Seborrheic Keratosis. Pediatric Use Seborrheic keratosis is not seen in the pediatric population. Dr. Craig G Burkhart, a board certified dermatologist, is a Clinical Professor at the University of Toledo College of Medicine in Toledo, Ohio and Clinical Assistant Professor at Ohio University of Osteopathic Medicine in Athens, Ohio. It is the first drug to be approved for this indication. The partnership provides the opportunity to the researchers, from the university, to publish their research under an Open Access license with specified fee concessions. [11]. This online resource is available under the Health eGuides tab at PeoplesPharmacy.com. The salicylate part of this compound is related to acetylsalicylic acid (aspirin). You are correct that topical hydrogen peroxide can be used to treat these unsightly growths. Many people from institutions which do not have library or cannot afford to subscribe scientific journals benefit of them on a daily basis. The volunteers in the study applied it twice daily for eight weeks. The results showed that patients treated with Eskata observed total or near clearance of all SK lesions after two treatments, when compared with patients who received the placebo. Get a detailed overview of seborrheic keratosis, a dark, non-cancerous type of skin growth, including symptoms, causes, . Four applications to seborrheic keratosis lesions administered one minute apart. Physicians are to use nitrile or vinyl gloves while handling Eskata and SK lesions are to be wiped with an alcohol wipe prior to application. ", "The widest possible diffusion of information is critical for the advancement of science. Utility of 30% hydrogen peroxide in the treatment of seborrheic keratosis H<sub>2</sub> O<sub>2</sub> 30% can be used as a chemical cauterant with minimal side effects. This write up will look into how to treat the skin condition using hydrogen peroxide. Example 2 - Hyperkeratotic Seborrheic Keratosis - 45% hydrogen peroxide, re-apply if needed to achive complete penetration. Skip to main content Extra 15% off $40+ vitamins They provide easy access to the latest research on a wide variety of issues. This means you will never need to spend so much money on your skin. After reading the column, I tried glucosamine and chondroitin. Open access journals are very helpful for students, researchers and the general public including people from institutions which do not have library or cannot afford to subscribe scientific journals. In this perspective, open access journals are instrumental in fostering researches and achievements. Mode of action SKs are keeping dermatologists busy. ", "Open access journals are a novel concept in the medical literature. Issue 9. They can occur on any part of the body except for the palms and soles but often present on sun-exposed areas such as the face and forehead. You may find it difficult to Seborrheic keratosis is not so uncommon around today. The doctor might also freeze or burn the area. Tertiary amines stimulate BP, initiating the one-electron transfer reaction with lower oxidation states to allow polymerization and increased biological effect [12]. Clinical Key, 0-. Long-term minor cosmetic changes may occur, including hyperpigmentation and hypopigmentation. For lesions that we encounter multiple times on a daily basisseborrheic keratoses (SKs)40% hydrogen peroxide topical solution (ESKATA) provides a safe and novel treatment. He has been awarded several research grants. We're empowering you to make wise decisions about your own health, by providing you with essential health information about both medical and alternative treatment options. But occasionally, the hydrogen peroxide would roll off the SK onto the adjacent skin and after a few seconds or so it would start to sting. Seborrheic keratosis can affect just about any part of the body but, through studies and a lot of research Seborrheic Keratosis is one the most common skin diseases today. Seborrheic keratoses are common and, most importantly, benign skin growths. In addition, thicker lesions may require more than one treatment. Overview. In most cases, lesions are benign and removal is not indicated unless requested by the patient for cosmetic reasons. If the hydrogen peroxide is of a higher percentage, such as more than 30 percent, then it is recommended to wear gloves or other gear for protection. Severe skin reactions including erosion, ulceration, and vesiculation have been reported in approximately 1% of patients.1, Skin reactions are common with the application of hydrogen peroxide 40%. There are times that the bumps Seborrheic keratosis can come up on nay part of the skin. But that also means people have to be very careful with the product. The other study was conducted in Norway (BMJ, Sept. 7, 2022). Eskata is a topical product used to treat certain types of skin growth known as seborrheic keratoses, which is a common non-cancerous skin growth. In case you have not given it a try, it will not be a bad idea if you decide on that today. Use of a keratolytic agent with occlusion for topical treatment of hyperkeratotic seborrheic keratoses. Reviewed in the United States on January 7, 2023. Terry Graedon, PhD, is a medical anthropologist and co-host of The Peoples Pharmacy radio show, co-author of The Peoples Pharmacy syndicated newspaper columns and numerous books, and co-founder of The Peoples Pharmacy website. After application of the hydrogen peroxide on the skin condition, you need to cover up the seborrheic keratosis to prevent the solution on it from evaporating. Seborrheic Keratosis Natural Remedies EDITOR'S CHOICE ; MOST POPULAR REMEDIES. Following application of ESKATA in patients with seborrheic keratosis lesions, hydrogen peroxide rapidly dissociates into water and reactive oxygen species . HP40 (Eskata) is a stabilized, topical solution of 40% hydrogen peroxide (H2O2) packaged in an applicator pen that is US FDA-approved to treat seborrheic keratoses (SKs). Sep 12, 2018. The reaction between the activators and BP is fast, so the maximum biological effect can be obtained by keeping these chemicals separate until just before contacting the skin surface [12,13]. Further studies and testing of activators with Eskata could potentially lead to an even better and more effective treatment of seborrheic keratosis. At least 20 publication records of articles and /or books related to the field of dermatology or in a specific research field. Safety concerns and maximum efficiency of peroxides have been a topic of study in a variety of dermatological conditions. The plan: carefully dab the 12% solution only on the SK with a q-tip, leaving it several minutes without touching the adjacent skin, twice a day for a couple of weeks. Each seborrheic keratosis on your skin is nourished by the supply to your skin. SK are well demarcated gray-brown to black lesions, which can be raised and covered with greasy scales [1, 4]. Some individuals have reported that the product work on their keratosis. While there is great interest from both patients and providers in a topical non-invasive treatment for SK, no effective topical therapeutic agent has been developed, and this remains an area of unmet need.. Email subject: Editorial Board Member Application, "Open access will revolutionize 21st century knowledge work and accelerate the diffusion of ideas and evidence that support just in time learning and the evolution of thinking in a number of disciplines. After applying the hydrogen peroxide, you should cover the skin condition up with duct tape. This is because hydrogen peroxide has a burning effect on ordinary skin. The Open Dermatology Journal is committed to ensuring high quality of research published. This occurs as a result of decrease in size of the blood vessels. Each independent review is provided by authors who have no financial association with the drug manufacturer. Last updated on Aug 18, 2022. Crust formed after one day, separate after three days. Experience in dermatology with an academic degree. The Leser-Trlat sign is defined as an increase in the number and size of seborrheic keratoses, and is considered a paraneoplastic syndrome most commonly associated with GI tract adenocarcinomas or lymphoproliferative disorders [1]. Common side effects of Hydrogen Peroxide include: Discoloration, Dry, peeling, or crusting of the skin, Final result? The ESKATA topical solution itself is just 40% hydrogen peroxide in isopropyl alcohol and water. As previously reported, SKs are composed of hyperadherent . In terms of clinical response, the smaller the lesion in terms of size and induration, the better the response when treated with any hydrogen peroxide. Extrapolating out from the some20 thousand practicing U.S. dermatologists, thats over 37 million SK diagnoses per year! So far as we know, however, doctors dont use bismuth subsalicylate for this purpose. One week after treatment, scaling (72%), crusting (67%), and erythema (66%) often persist. And you probably didnt know the unforgettable Bell Rocket Belt was powered by hydrogen peroxide: But HTP has a nasty habit of accidentally blowing up things likenuclear submarines. You can learn more about the pros and cons of glucosamine and chondroitin as well as other natural approaches for easing joint pain in our eGuide, Alternatives for Arthritis. Since it's 320 degrees below zero, it freezes the skin rapidly at a much deeper level than butane. Seborrheic Keratosis - before after 2 weeks of 12% hydrogen peroxide (The Minimist supposes you must be duly warned that the above is not medical advice, check with your doctor, dont try this at home, and yada yada. I used a Q-Tip to apply it twice a day after my morning and evening shower. The FDA approved 40 percent hydrogen peroxide under the brand name Eskata to be administered by a health care provider. By harnessing the oxidative capabilities of H2O2 , 1-2 treatments with HP40 produced a higher rate of clearance of four SKs per patient compared to vehicle in two . The first one says I think Ill have an H2O. The second one says I think Ill have an H2O too and he died. When you begin to notice positive response, you can reduce the frequency to just once in a day. The proprietary topical solution of stabilized 40% hydrogen peroxide known as A-101 40 was approved to meet the treatment need for a well-tolerated, non-invasive, topical agent for the removal of raised seborrheic keratoses. Hydrogen Peroxide is a prescription medication used to treat the symptoms of Seborrheic Keratosis . At first glance, the raised skin might look harmful and a cluster of them may be even more disturbing. Prescription-strength hydrogen peroxide: This treatment is performed in a dermatologist's office with a very strong solution of hydrogen peroxide. It is as if humans are madly flailing to find just the right mix of rocket fuel to justify the headline Humans harnesses elemental force with simple dilution. After the treatment, patients may experience redness, burning, stinging, swelling, blistering or itching. Hydrogen peroxide shrinks the blood vessels that convey the blood and nutrient to the skin condition. . It is mostly found in older adults and can appear on chest, back, shoulders, or face. This method does not work like magic. The high concentration of hydrogen peroxide leads to effective oxidative damage leading to the disappearance of the SK after two uses [14]. See permissionsforcopyrightquestions and/or permission requests. SKs are astonishingly common. Firstly, to successfully get rid of a seborrheic keratosis (and prevent more from occurring), you need a combination of internal and external remedies. But dermatologists only treat 43% of their SK patients to remove the growths, given that the treatment options most commonly cryosurgery, followed by shave excision, electrodessication, curettage have potential drawbacks (as in ouch!!!). Write to them in care of King Features, 628 Virginia Drive, Orlando, FL 32803, or email them via their website: PeoplesPharmacy.com. Seborrheic Keratosis. We will respond to your inquiry shortly. After the treatment, people may experience redness, burning, stinging, swelling, blistering or itching. Seborrheic Keratosis. Weedons Skin Pathology W. Patterson, Gregory A. Hosler, Eds. Regardless of the subtype, all SK lesions display hyperkeratosis, acanthosis and papillomatosis [3, 4]. The site should be dry before the patient leaves the office and topical products should not be applied for at least six hours. You are correct that topical hydrogen peroxide (H202) can be used to treat these unsightly growths. The articles are high standard and cover a wide area. A seborrheic keratosis (SK) represents a common benign lesion on sun-exposed skin among middle-aged and older individuals. A total of 937 subjects with 4 seborrheic keratoses were treated in 2 trials. The success rate is modest, ranging from 4% to 23% clearance. 31 It presumably causes cell death by causing oxidative damage to cells. That provided much more relief from pain and more mobility in my thumb than anything else I had tried. Bentham Open welcomes institutions and organizations from the world over to join as Institutional Member and avail a host of benefits for their researchers. Hydrogen peroxide 40% (Eskata) is a topical solution for the in-office treatment of raised seborrheic keratosis lesions.1 Although the mechanism of action is not fully understood, supraphysiologic concentrations of hydrogen peroxide may cause oxidative damage and death to seborrheic keratosis cells.2, Hydrogen peroxide 40% may cause corneal injury, chemical conjunctivitis, eyelid edema, severe eye pain, or permanent eye injury, including blindness, if the eye or mucous membranes are exposed to the topical solution during application. Hydrogen peroxide can be applied on keratosis on any part of the body; irrespective of where it is located. They are benign, which means they aren't a type of cancer. Br J Dermatol 2006; 154(2): 341-4. The Open Dermatology Journal is an Open Access online journal, which publishes research articles, reviews, letters, case reports and guest-edited single topic issues in all areas of dermatology. Topical Hydrogen Peroxide has been recognized as an effective topical treatment. After a period of one minute to assess for pain and erythema severity, hydrogen peroxide 40% is reapplied three additional times, if tolerated. The Food and Drug Administration (FDA) has approved a 40 percent hydrogen peroxide solution (Eskata) to destroy seborrheic keratosis cells. Hydrogen Peroxide. Eskata (hydrogen peroxide) is a medication that's applied on the skin and used to treat harmless growths called seborrheic keratoses in a healthcare provider's office. Eskata (Hydrogen Peroxide) for the Treatment of Raised Seborrheic Keratoses (SK) Drug Development Technology. Thoughlong debunkedanddenounced by the FDA, online sites and health food quacks have thrived. It isn't fully understood how it works, but it might cause damage to cells that lead to these skin growths. But at home, why not a slower, multi-application approach with lower concentation? It is known as one of the oldest universities in Malaysia. This is exactly what Open Access Journals provide and this is the reason why I support this endeavor. However, treatment could possibly benefit patients further if agitated and mixed with a tertiary amine to increase ROS production or if the skin was prepped in a way to make ROS destruction more efficient. Somatic mutations have also been implicated in SK pathogenesis, such as FGFR3, in which increasing age and ultraviolet light exposure increase the risk for development [1]. So The Minimist wondered what about a home treatment ? Their aim to provide exceptional leadership in the field of education continues until today and has produced quality graduates to act as future educators to students in the primary and secondary level. Here are some tips if you decide to try removing Seborrheic Keratosis with Apple Cider Vinegar for yourself: 1. Bentham Open welcomes institutions and organizations from world over to join as Institutional Member and avail a host of benefits for their researchers. We have not yet learned of an effective remedy to get rid of these extremely common spots. So a 40% hydrogen peroxide solution like the one in the FDA-approved SK treatment doesnt seem like something you can just buy on Amazon but . Jackson JM, Alexis A, Berman B, Berson DS, Taylor S, Weiss JS. Atypical mitotic figures (B) are a feature of squamous cell carcinoma. Nitric acid . You are the first to report that the popular diarrhea remedy Pepto-Bismol might work on these skin growths. ", "Open access journals are extremely useful for graduate students, investigators and all other interested persons to read important scientific articles and subscribe scientific journals. And is there a coming storm of 2-tier in-office/home hydrogen peroxide solutions in the offing? The U.S. post officebans shipping hydrogen peroxide in higher than 20% concentrate. After graduating cum laude from the University of Pennsylvania with Phi Beta Kappa honors, he received his medical degree from University of Toledo College of Medicine. It might be less painful and irritating to the skin, yet still ultimately work. Seborrheic Keratosis (SK) is a common, benign epidermal tumor as observed by dermatologists. Bentham Open publishes a number of peer-reviewed, open access journals. During a single in-office treatment session, ESKATA was applied to seborrheic keratosis lesions 4 times, approximately 1 minute apart. In turn, these chemicals in concert boost the biological utility of peroxides. Seborrheic keratosis (SK, plural keratoses) is a raised growth that looks a little like an irregular, waxy mole or wart. 39, No. The company behind the FDA approval of hydrogen peroxide already has a field trial underway fora hydrogen peroxide-based wart treatment. They are generally of cosmetic significance only, unless they become irritated or mimic a melanoma. Various studies have been conducted that test the efficacy and safety of these treatments to determine conditions in which they offer clinical benefit. The articles are among the best and cover most scientific areas. Seborrheic keratosis is a common type of skin condition that occurs on the outer layer of the skin called epidermis. Seborrheic keratosis, the "barnacles of aging" Seborrheic keratosis (SK, plural keratoses) is a raised growth that looks a little like an irregular, waxy mole or wart. The Food and Drug Administration approved 40% hydrogen peroxide under the brand name Eskata to be administered by a health care provider. To achieve optimal results requires at least two . Ten years later there is still nothing. The Ministry began its duties in 1951, the beginning of the health development boom in Jordan. A seborrheic keratosis (seb-o-REE-ik ker-uh-TOE-sis) is a common noncancerous (benign) skin growth. The use of benzoyl peroxide with a tertiary amine in the treatment of dermatophyte and bacterial infections in vitro was studied by Burkhart and Burkhart [12]. I read Open Access journals to keep abreast of the recent development in my field of study. Bentham Open provides researchers a platform to rapidly publish their research in a good-quality peer-reviewed journal. Want to remove your Seborrheic Keratosis growths, those ugly yet benign wart-like bumps that afflict 1 in 5 Americans? Apply enough solution to uniformly wet the lesion surface, including the edges . Clinical and histopathological investigation of seborrheic keratosis. However, high concentrations of hydrogen peroxide, specifically, have been used in the production of bombs and must be handled carefully and safely. Hydrogen peroxide 40% topical solution is available in a single-session pen applicator to be administered by a medical professional. They are benign, and we tend to get more as we grow older. The active ingredient in this product is hydrogen peroxide solution. ", "Open access journals represent a major break-through in publishing. The solution is applied to the spots four times, with a minute between, during a single office visit. Hydrogen peroxide is one of the products that can be used in treating keratosis at home. So not surprisingly, hydrogen peroxide in concentrations of 35% and up are on the US Department of Homeland Securitysrestricted Chemicals of Interest listas an explosive precurser. If you want to get rid of the seborrheic keratosis on any part of your body, you can always get this done by simply making use of any of the several treatment methods available out there. They are an outstanding source of medical and scientific information. One of the studies included 6,200 British adults who had not been taking vitamin D (BMJ, Sep. 7, 2022). The partnership provides the opportunity to the researchers, from the university, to publish their research under an Open Access license with specified fee concessions. He has 6 patents in the area of acne, tinea and head lice to his credit. By harnessing the oxidative capabilities of H 2 O 2 , 1-2 treatments with HP40 produced a higher rate of clearance of four SKs per patient compared to vehicle in two . Pour baking soda into a small bowl. Thats more than acne, rosacea and psoriasis combined. Many individuals are having it. Expression of a cyclin-dependent kinase inhibitor, p16 is implicated in its pathogenesis [5]. ", Department of Medicine, University of Toledo , Toledo, USA, The Guest Edited Thematic Issues are published free of charge, Average publication time is 18 days between the final acceptance of revised manuscript and its publication, (Indiana University School of Nursing, USA), (Centre Antipoison-Centre de Pharmacovigilance, France), (St. Luke's-Roosevelt Hospital Center, USA), (Indiana University School of Medicine, USA), (Delft University of Technology, The Netherlands), (Instituto de Agroquimica y Tecnologia de Alimentos, Spain), (University of Trs-os-Montes e Alto Douro, Portugal), (Chinese University of Hong Kong, Hong Kong), Fabricating and Stating False Information, Post Publication Discussions and Corrections, https://creativecommons.org/licenses/by/4.0/legalcode, darshana.balasubramaniam@rockets.utoledo.edu, www.clinicalkey.com.carlson.utoledo.edu/#!/content/drug_monograph/6-s2.04999, www.drugdeve Seborrheic keratosis is a benign skin growth that typically impacts people as they age with the first growths forming around middle age. Most patients required a second treatment at day 22. If you notice a spot on your skin that looks red, feels rough & will not heal, what you Privacy Policy | Security Statement | Terms & Conditions. It is not a natural treatment, however, and it is not a do-it-yourself project. A thwarted 2016 New York City terror plot involved40 pounds of hydrogen peroxideintended to power an improvised explosive device. Copyright 2019 by the American Academy of Family Physicians. Utility of 30% hydrogen peroxide in the treatment of seborrheic keratosis It is possible to treat pigmentation yourself at home. washing the area of skin exposed immediately after application, reducing the risk for potential side effects from peroxide usage. This is specially a must for researchers belonging to institutions with limited library facility and funding to subscribe scientific journals. They offer accessible information to a wide variety of individuals, including physicians, medical students, clinical investigators, and the general public. The essential criteria to become Editorial Board Members of The Open Dermatology Journal are as follows: The Roles of Editorial Board Member are to: If you are interested in becoming our Editorial Board member, please submit the following information to info@benthamopen.net. The researchers tested blood levels of the study volunteers and assigned them on a random basis to get vitamin D supplements or not. And interestingly, ten percent seem to have improved on their own. Whitney J. Palmer. At high concentrations (68+%), though, the stuff is, literally,rocket fuel. (Hydrogen peroxide is available over the counter for topical use as a 3% solution.) Acanthosis and papillomatosis (A) are features of seborrheic keratosis but can also be seen in squamous cell carcinoma. A: Seborrheic keratoses are tan, brown or black skin growths that may be rough. For some treated lesions that were not completely cleared approximately 3 weeks after treatment, another treatment was administered following the same procedure. Copyright 2023 American Academy of Family Physicians. An unexpected bonus of this regimen is that it reduces the risk of stroke. Over-the-counter hydrogen peroxide is 3% H202. At the time, we could find nothing in the medical literature to support that approach. Spanish researchers analyzed a primary care database and found that patients prescribed this combination were less likely to develop clotting strokes (Therapeutic Advances in Musculoskeletal Disease, July 26, 2022). One very small study found that diclofenac gel (eg Voltaren gel) greatly reduced the area covered by a seborrheic keratosis (Dermatologic Therapy, Nov. 2020). I have an arthritic thumb, and nothing had helped. SK can be divided into six histopathological categories: acanthotic, hyperkeratotic, adenoid, irritated, clonal and melanoacanthoma. A checkerboard assay was used to determine the Minimum Inhibitory Concentration (MIC) of Benzoyl Peroxide (BP) and terbinafine against various infections, including Candida albicans, Pseudomonas and Staphylococcus. It can have an acidic effect on the seborrheic keratosis and get it removed from the skin. Topical concentrated hydrogen peroxide is a proven treatment for SK and a variety of dermatological conditions, which work by releasing Reactive Oxygen Species for target skin destruction. ", "Open Access 'Chemistry' Journals allow the dissemination of knowledge at your finger tips without paying for the scientific content. Topical 0.1% Tazarotene cream with a twice a day application caused clinical and histological improvement in a small study done in seven of 15 patients, with the application site being indistinguishable from normal skin [9] Vitamin D analogs have also proven effective in treating lesions of SK. This topical treatment contains 40% concentrated hydrogen peroxide in a solution of isopropyl alcohol and water, and is a non-invasive treatment launched commercially for physician use and administration. ESKATA is a targeted treatment applied directly to the raised SK using a pen-like applicator. Current understanding of seborrheic keratosis: Prevalence, etiology, clinical presentation, diagnosis, and management. I have heard that putting hydrogen peroxide on these spots might be helpful. Mitsuhashi Y, Kawaguchi M, Hozumi Y, Kondo S. Topical vitamin D3 is effective in treating senile warts possibly by inducing apoptosis. Using tertiary amines as activators of peroxides increases the production of ROS, while trace metals stabilize the transition state and act as catalysts to reduce the energy required for the formation of ROS. Some people may have just one growth while others may have multiple growths even in the same area. J Dermatol 2005; 32(6): 420-3. They appear gradually, usually on the face, neck, chest or back. This nuttery dates back to the 1940s and one Father Richard Willhelm and a hare-brained theory of oxygenization. It is the first drug to be approved for this indication. The success rate is modest, ranging from 4 percent to 23 percent clearance. We hope that if others try it, they let us know how it works. He has co-written one book, written over 25 book chapters, and has published a total of 780 articles. Eskata. Bentham Open is pleased to announce an Institutional Member partnership with the Ministry of Health, Jordan. This article aims to review the chemical composition of hydrogen peroxide (H202) in treating SK, methods to increase its effectiveness as a topical dermatological product, and explore the promising new FDA approved treatment. Hydrogen Peroxide is available under the following different brand names: Eskata What Are Side Effects Associated with Using Hydrogen Peroxide? 2016. Eskata, developed by Aclaris Therapeutics is a 2018 FDA approved treatment for raised SK lesions. This series is coordinated by Allen F. Shaughnessy, PharmD, assistant medical editor. ), 20 thousand practicing U.S. dermatologists, FDA Highlights of Prescribing Information. Additionally, antioxidant rescue in which treatment of SK with peroxides is followed by antioxidants which combat ROS to preserve normal cells can be utilized to prevent unwanted skin destruction following the use of highly concentrated hydrogen peroxide. The FDA has recently approved a topical solution of 40% hydrogen peroxide to treat seborrheic keratosis. The exact mechanism by which hydrogen peroxide treats seborrheic keratoses is unknown. Use hydrogen peroxide for the removal of seborrheic keratosis. Years ago, I discovered that applying Pepto-Bismol to my skin could cure acne. HP40 (Eskata) is a stabilized, topical solution of 40% hydrogen peroxide (H 2 O 2) packaged in an applicator pen that is US FDA-approved to treat seborrheic keratoses (SKs). H<sub>2</sub> O<sub>2</sub> 30% can be used as a chemical cauterant with minimal side effects. Cod liver oil contains vitamin D (10 mcg or 400 IU per daily dose). When data from the two trials were combined, 6% of patients achieved clearing of all four lesions (number needed to treat = 17), and 18% of patients achieved clearing of three lesions (number needed to treat = 6).1 No lesions cleared with the vehicle-only application.