The primary function of the skin is to provide a protective shield for our internal organs, tissues, and bones. Even though it is a powerful barrier, the skin is also vulnerable to a host of common injuries and irritations. There are different types of over-the-counter (OTC) medicines used to protect skin and treat common ailments. These include skin protectants, first-aids, and anti-fungals. Make sure you know which OTC medicine is the right one for you to keep your skin healthy and safe.