It works by breaking down layers of thick skin, making it effective in treating conditions like acne, warts, psoriasis, calluses, and corns.

["Apply the medication externally as directed on the label"]

--As an AI, I need specific medication names to provide accurate information about their adverse effects. "OTC" stands for "over-the-counter," which is a broad category that includes many different medications. Please provide a specific over-the-counter medication name.