I have severe itching at times on my buttocks. It has been there since 6-7 months now. Initially the affected area was small. I didn't pay much attention at that time. Now the effected area has increased. Almost the whole buttock area is under small wounds caused by itching also the skin complexion has gone darker in that place. I have tried itch guard but no use. I used talc powder to keep the area dry. But at night after removing the underwear it starts itching again. What should I do ? Which kind of doctor should I visit ? It's a bit embarrassing as the affected area is under pants. Kindly suggest. Seems like some fungal infections.