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Pediatr Dermatol. 2006 Nov-Dec;23(6):574-9.

A prospective randomized trial comparing the efficacy and adverse effects of four recognized treatments of molluscum contagiosum in children.

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  • 1CHU Sherbrooke, University of Montreal, Montreal, Quebec, Canada.

Abstract

Molluscum contagiosum is a common viral disease of childhood presenting as small, firm, dome-shaped umbilicated papules. Although benign and generally self-limited, this condition is contagious and can lead to complications such as inflammation, pruritus, dermatitis, bacterial superinfection, and scars. No consensus has been established concerning the management of this condition. We conducted a prospective randomized study comparing four common treatments for molluscum contagiosum in 124 children aged 1 to 18 years. One group was treated with curettage, a second with cantharidin, a third with a combination of salicylic acid and lactic acid, and a fourth with imiquimod. Patients needing, respectively, one, two, or three visits for treatment of their mollusca were: 80.6%, 16.1%, and 3.2% for curettage, 36.7%, 43.3%, and 20.0% for cantharidin, 53.6%, 46.4%, and 0% for salicylic acid and glycolic acid, and 55.2%, 41.4%, and 3.4% for imiquimod. The rate of side effects was 4.7% for group 1, 18.6% for group 2, 53.5% for group 3, and 23.3% for group 4. Curettage was found to be the most efficacious treatment and had the lowest rate of side effects. It must be performed with adequate anesthesia and is a time-consuming procedure. Cantharidin is a useful bloodless alternative particularly in the office setting, but has moderate complications due to blisters and necessitated more visits in our experience. The topical keratolytic used was too irritating for children. Topical imiquimod holds promise but the optimum treatment schedule has yet to be determined. Finally, we believe that the ideal treatment for mollusca depends on the individual patient preference, fear, and financial status, distance from the office, and whether they have dermatitis or blood-borne infections.

Comment in

  • Molluscum contagiosum. [Pediatr Dermatol. 2007]
PMID:
17156002
[PubMed - indexed for MEDLINE]
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