Duofilm is used for treatment of warts in adults. Warts are a viral disease in the surface skin layer. The time between the infection and disease manifestation (wart development) varies from several weeks to several months. Warts can be transmitted through contact of the virus with damaged skin, especially where it is ware and humid. That is the reason why swimming pools are one of the most frequent infection sources. Use of Duofilm leads to the controlled erosion of keratinine (the layer of the thick rough skin on the wart surface). Therefore the preparation should be used only for warts.