Fungal infections of the skin are common. They are caused by fungus, otherwise known as dermatophytes, that infect and eat the outermost layer of the skin (epidermis), nails, or hair and scalp. Common fungal infections include all ringworm, athlete’s foot, tinea versicolor or pityriasis vericolor, jock itch, and dandruff (seborrheic dermatitis). Dermatologists will prescribe an antifungal medication that inhibits the growth of the fungus.
For more information please see American Academy of Dermatology