Several times lately I have gotten a pretty big rash on my neck/upper chest. It seems like it starts with a pimple-like thing, or some blistery looking thing. It takes forever for that to heal, and occasionally now it spreads into that rash. After a while, the rash dries up and flakes....but it takes several days to go away as well. Any clue what could be causing this? Anyone have anything like this? Could your run-of-the-mill zit cause this sort of reaction? Any recommendations of a product I can try?