tinea versicolor causes
Tinea Versicolor. Tinea versicolor is a fungal infection of the skin. It's also called pityriasisversicolor and is caused by a type of yeast that naturally lives on your skin. When the yeast grows out of control, the skin disease, which appears as a rash, is the result. Key Facts of Tinea Versicolor. Causes of Tinea Versicolor.