Efficacy of duct tape vs placebo in the treatment of verruca vulgaris (warts) in primary school children.

Objective: To determine the efficacy of duct tape compared with placebo in the treatment of verruca vulgaris.

Design And Setting: A randomized placebo-controlled trial in 3 primary schools in Maastricht, the Netherlands.

Participants: One hundred three children aged 4 to 12 years with verruca vulgaris.