Hello, im a 21 year old male. About 8 months ago my chin got a pink spot on it the size of a quarter. It itches most of the time. The first few months it would ramdomly get a 1 or 2 tiny white dots on it that looked like little white heads. But then they would go away a few days later by themselves. I have been to the dermatologist and she said it was acne but I don't think so. I have been on doxycyline for 4 months and tried differin without any success. Has anyone had something simular or have any ideas on what else it could possible be if not acne? O yeah I almost forgot. No facial hair grows on this spot either.

Thanks