"My daughter never had a nappy rash whilst she was wearing a nappy. I always washed her bottom with baby soap and water and applied vaseline - nappy rash free and a supper soft bum"
Hmmmm... my children have never had nappy rash either and I have rather a lax approach to nappies. I'm not too hot on remembering to change them, and I regularly whip off a wee nappy and put the clean one on without wiping or washing. I am very lucky that my children aren't prone is my guess.