<<Disclaimer: Verify this information before applying it to your situation.>> I have been on a gf diet for six weeks now. My blood test came back slightly elevated. I am to see a gastro specialist in a couple of weeks. I think I had some DH symptoms before I went to my doctor, but they have disappeared. If I have an iodine patch test done now where the itching was, would it still cause a reaction? I'm still trying to avoid going off the diet. Sandy