<<Disclaimer: Verify this information before applying it to your situation.>> I occasionally have small blisters (white bumps, actually) rise on my left arm. I can't tie it to ingestion of gluten since I am pretty strict on my GF diet. I also occasionally have some eruptions on my scalp (back half of the head). These things come and go, but I can't link it with gluten. I was under the impression that DH tended to occur bilaterally on the arms and legs. Any thoughts/suggestions? Thanks, Leif