I just found this forum and I can't tell you how badly I wish I had found it before. I am 25 and have had this problem for 20 years. I don't know what to do. I have seen several dermatologists and they have prescribed different things, always questioning what the previous Doctor prescribed. One presribed Differin, another Retina-A... although the Retina A was literally peeling my skin, I began to itch uncontrollably, and after a month of discontinuing it, I'm still itchy. I cry when I see that other pople have gone through what I have" dirty neck" things. It's comforting to know that people share my pain.