For a medicated dog shampoo to be most effective, it should remain on the skin for 5 to 10 minutes. Griffin recommends applying the shampoo all over, paying particular attention to the problem areas.

One editor tried Remedy’s medicated dandruff shampoo—containing both salicylic acid and ketoconazole—on her oily, flaky scalp for a month. Here are the results.

Dear Anna, Medicated soaps are designed to kill germs on the body, and doctors may prescribe them for specific skin conditions, such as septic infections. However, I have not seen Ugandan doctors ...