T.P.
Cloth diapers have saved my son's bum. He has only had one rash since we switched him at 4 months (he is now 2yo) and that is because he had terrible diarrhea for a few days. When that occurred, the only thing that really helped was Hyland's diaper rash ointment. I tried several brands but that one cleared it up the same day - and it was bad - started to blister and crack.
Good luck!