Foams are a light, frothy, liquid dosage formulation that can be used on the skin or in the hair. They combine active ingredients that help to treat a wide range of conditions with inactive ingredients that can be soothing for the skin. Foams are light and absorbed quickly into the skin. This makes them ideal for large areas of the body and areas with hair. Talk with your doctor or pharmacist to see if a compounded medicated foam is the right choice for you.