Wow, I am reading all this and going to say that I get this strange situation every fall and spring... Bumps that itch like HELL on the back of my neck and then that turns into a rash. I also get really dizzy when the weather changes like that. It's like an allergic reaction to each season and my body fights itself with nature until it settles down as I get used to the season! So weird!! but so true.. year after year the same thing!!!! I had Ulcerative colitis for years and years and years and finally got a J-pouch and I truly believe the UC is still living in my body but I was just able to get rid of a very very diseased organ.. my colon!! I have very bad athlete's foot from time to time and once in awhile, like now, I have a rash under my arms. I get tired of always going to the doctors and I am reluctant to keep trying different medicines only to have bad side effects that are worse than the itching so I just live with it. At one time, I was told I had some Chrohn's going on as well. But who knows. I do have a creame for the athlete's foot but yeah, I don't always want to use it.. I try Tea Tree oil from time to time and someone just told me about witch hazel and something else. Anyhow, all this to say, I have no solutions or advice other than to say, I just know my situation is related to a bad autoimmune situation. I'll hope you get a solution and can help us all. I have also experimented with no gluten but that didn't help either.