Clotrimazole is a prescription and over-the-counter antifungal medication used to treat fungal infections of the skin, nails, and mouth such as ringworm and athlete’s foot. It is in a class of antifungal medications called imidazoles that work by blocking the growth and spread of fungi. Common side effects include redness, itching, swelling, burning, or stinging sensation.
Clotrimazole is currently available under the brand name Lotrimin. It comes in the form of a cream and a liquid to apply to the skin.