Tinea versicolor is a common skin infection caused by a type of fungus (Malassezia species) and is common in the summer months. This yeast has skin lightening properities which makes the rash appear white especially on brown or black skin, and can be confused for vitiligo. It can also be pink/red. Ketoconazole is an effective treatment for this rash and is available over the counter as Nizoral shampoo. To use it, lather on the affected areas on body daily in the shower and leave it on for 5 minu