Treatment of pediatric molluscum contagiosum with 10% potassium hydroxide solution

Burce Can1, Filiz Topaloğlu, Mukaddes Kavala

  • 1Department of Dermatology, University of Medeniyet Goztepe Training and Research Hospital , Istanbul , Turkey.

Abstract

Insights

Topical 10% potassium hydroxide (KOH) solution effectively treated molluscum contagiosum (MC) in children. This safe and inexpensive treatment achieved high clearance rates with minimal side effects.

Area of Science:

  • Dermatology
  • Pediatrics
  • Infectious Diseases

Background:

  • Molluscum contagiosum (MC) is a common viral skin infection in children, often requiring treatment due to psychological distress from widespread lesions.
  • Potassium hydroxide (KOH) is a well-established alkali used in dermatology for diagnostic purposes, such as identifying fungal infections.

Purpose of the Study:

  • To evaluate the safety and efficacy of a topical 10% potassium hydroxide (KOH) aqueous solution for treating molluscum contagiosum (MC) in pediatric patients.
  • To assess the treatment outcomes and side effects associated with topical 10% KOH in children with MC.

Main Methods:

  • Forty children diagnosed with MC were enrolled in the study.
  • Parents applied a 10% KOH aqueous solution twice daily to all lesions using a cotton stick.
  • Treatment continued until lesions showed signs of inflammation or superficial ulceration, with assessments at weeks 2, 4, 8, and 12.

Main Results:

  • Complete clearance of MC lesions was observed in 92.5% (37 out of 40) of children within a mean of four weeks.
  • Three children discontinued the study: two due to severe stinging, and one developed hypopigmentation.
  • Local side effects were reported in 32.4% (12 children) of the participants.

Conclusions:

  • Topical 10% KOH solution is a safe and effective treatment for molluscum contagiosum in children.
  • Despite some local side effects, 10% KOH offers an inexpensive and noninvasive therapeutic option for pediatric MC.
  • The study supports the use of topical 10% KOH as a viable alternative treatment for molluscum contagiosum in pediatric populations.