Tinea versicolor

Tinea versicolor is a common infection caused by a fungus. It happens most often in warm, humid weather. Tinea versicolor results in patches of skin that change color. They may be white, brown, red or gray-black. The patches often are more noticeable after being in the sun. They can be mildly itchy. In adults and teens, the patches usually form on the back, chest or arms. In younger children, they usually appear on the face.

If you think you may have tinea versicolor, see a health care professional to confirm the diagnosis. Treatments include creams, lotions or shampoos designed to fight fungal infections. Many are available without a prescription. The skin color might stay uneven for months. And the infection can return, especially in warm, humid weather.