Salicylic acid is used on the skin to treat psoriasis and other dry, scaly skin conditions. This medication is also used to help remove dead skin from warts, the palms of the hands, and the soles of the feet. Among the most popular OTC acne treatments is salicylic acid, which is incorporated into gels, wipes, creams, and face washes. Dec 28, · If you, too, have been dealing with acne for most of your adult life More on acne treatments: 4 Steps for Getting Rid of Cystic Acne, Fast. These Potent Acne Spot Treatments .