I am asking about my son who had celiac and Down syndrome. He has had a rash we have been trying to control for 2-3 months. Doctor at first thought it was eczema, the steroid cream did very little to help it. I changed his soaps to dove. still very little relief. Then I tried an otc antihistamine and that did reduce the itchiness and spots. After 10 days I took him off of the antihistamines but the rash/spots came back. It is hard to get hi into a dermatologist right now. If it was dh, would an antihistamine affect it? I dont know how he would have been glistened. He has been home since t