Look up dermatitis herpetiformis. It's the rash associated with Celiac Disease. A rash like you are describing is the symptom that tells me I got into gluten and not something else I don't tolerate. I think it is most typically found on the legs, arms, and face. Mine shows up in different areas each time, but I had it for 2 years on my breasts before going off gluten.
3/30/10 at 7:51am