A member asked:

I ve been suffering from 2 brown spots on forearm .. i used nizoral (ketoconazole) cream and it turns to white my doc. say it is vitiligo .. but how ??

A doctor has provided 1 answer
Dr. John Chiu answered

It is fungal: The area was infested by a fungus which produced the dark pigment (melanin) and served as a sunblock. When you removed the fungus with Nizoral, (ketoconazole) the area underneath would look pale due to lack of sun exposure .This is called tinea versicolor.

Answered 3/16/2016

3.7k views

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