<<Disclaimer: Verify this information before applying it to your situation.>> If it is diaper rash at all. Our first child (not a celiac) had what we thought was diaper rash. It wouldn't go away no matter what we tried or used. Finally at the doctors office the doctor said it was a yeast infection, gave us a trial size sample of medicine and it was gone in a couple days. It may or may not really be related to CD. Tim Meadows Warsaw, IN