Although molluscum contagiosum (MC) is a common infectious dermatosis that is selfresolving, treatment can diminish discomfort and decrease the risk of autoinoculation and infection to others, because it is transmitted through direct skin contact. This systematic review evaluates the efficacy of topical treatments for MC. A PubMed search following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines was performed to find randomized, controlled trials of MC treatment. The search yielded 129 publications, but only 15 studies published between 1994 and 2020 were found to fit the inclusion criteria. Treatment modalities included podophyllotoxin, imiquimod, sodium nitrite, myrtle leaf extract, phenol, Salatac Gel (salicylic acid with lactic acid), potassium hydroxide, cantharidin, SB206, and VP-102. Outcomes were extracted from the literature, and subsequent quality and risk of bias assessments were performed. All treatments were more efficacious than the control except cantharidin, potassium hydroxide, and imiquimod, which had varying degrees of efficacy throughout studies. Overall, studies were of sufficient quality and had low risk of bias, but they had small sample sizes and lacked adequate explanation of statistical analysis. Current first-line treatment entails mechanical methods such as cryotherapy and curettage, which may be frightening to children with MC, so the development and assessment of topical treatments allows for alternative efficacious techniques. (c) 2021 Elsevier Inc. All rights reserved.
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