I have been battling a rash for about 3 years now. It comes in spurts that last for months then it clears up for a while. It starts on my back and spreads to my shoulders, neck, and my chest. It starts as small papules and itch profusely, then they look like small blisters. I went to one dermatologist and he thought it looked like a drug reaction, I changed my medications, took steroids and an antibiotic for secondary infection, It seemed to clear a little then came back. Had allergy testing, found out I was allergic to dairy, I completely cut out all dairy, no change. Tested for lupus and syphillis, negative. 1 year ago my physician tried me on ketoconazole because I had what appeared to be a yeast infection under my breast, then the rash started all over again. It worked, it completely cleared it up in two weeks, Its back again! Now I have not been feeling well lately, nausea all the time, abdominal discomfort, night sweats, I get lightheaded at work alot and my heartrate just jumps in the 120s out of nowhere. I have checked my blood sugar at work here and there when I get these flashes but it is always within normal limits. The only history I have besides the rash is asthma. I am a 33 years old female and weigh 165 at 5'4". I am an emergency room nurse so I am around alot of nasty stuff. I do have a lump near my collarbone, it's peasize and it moves. The last time my doctor checked it he said not to worry about it. What do you think. I am young...Why am I getting these horrible rashes?