Apply duofilm to the affected area only and allow to dry. Cover with plastic if the lesion is large or on the foot to help penetration of active ingredients. Continue treatment once daily until the lesion is completely cleared and the ridgelines have been restored. The usual treatment period is 6-12 weeks. For external use only. Highly flammable.
Active ingredient: Salicylic Acid (16.7% w/w), Lactic Acid (16.7% w/w).