Topical salicylic acid treats acne by reducing swelling and redness and unplugging blocked skin pores to allow pimples to shrink. It treats other skin conditions by softening and loosening dry, scaly, or thickened skin so that it falls off or can be removed easily.

Wash your hands and the affected area and gently dry. Put a thin layer of Dersol 12% Ointment cream on the affected skin, using your fingertips. Apply it to the entire area affected by acne, not just each spot. After applying, wash your hands thoroughly with water.

Wash your hands and the affected area and gently dry. Put a thin layer of Dersol 24% Ointment cream on the affected skin, using your fingertips. Apply it to the entire area affected by acne, not just each spot. After applying, wash your hands thoroughly with water.