I have a withe spots over my body my neck, chest, abdomen, and my back. Nothing on my shoulders or any where else. They are just like normal skin but much lighter than my normal skin. It does not hurt or itch.This happened around 3 Years till today. First time I went to a Dermatologist he diagnosed that as Tinea versicolor and he gave me a treatment but it does not work. After that I went to another Dr. He was using a blue light in a dark room. Then, he said it not a Tinea! he said this is something recently new, he gave me the name of the disease but I do not remember it. It is something like (pre or tri macular ____melanin ___), and for a treatment he describe for me a Gel (Acnezoyl 5%) after a week I traveled and I could not contact with him. For 3rd time I went to a Dr. and she also diagnosed that as Tinea versicolor and she gave me a shampoo and antibiotics and it does not work. Lastly, the fourth Dr. said it is not a Tinea versicolor or fungus. He said, they are probably, Pityriasis alba or post inflammatory hypoigmentation. He ask me about the diagnose of 2nd Dr. and when I find it he want me to send the name to him, but the problem is I could not find the name. He gave me a shot and we will see. Any idea about what are these spots?