M.S.
My daughter has had several yeast infections. Hers were caused by being on antibiotics or when she has several bowel movements in a short time. The only way I was able to tell the difference in the yeast infection and rash was that the diaper rash cream wouldn't clear it up. My doctor prescribed a cream called Nystatin. I have had the same tube since my daughter got her first one because it usually only takes a couple of times to clear it up. Good luck!