Some fungi, such as Malassezia yeast, will glow under a black light. Malassezia usually glows a yellow-green color. To confirm your symptoms are caused by fungal acne, your doctor may also perform ...

A doctor may diagnose ringworm after examining your skin and possibly using a black light to view the affected area. Depending on the type of fungus, it may glow under black light. Your doctor may ...

A 19-year-old university student in Philadelphia had a surprising firsthand encounter with a rare tropical black fungus ... which is when a doctor takes a light scrape of skin from the surface ...