Put Butt Past on my registry but not sure if I should change it.
I'm sure this is one of those things that will be different for each baby. DD1 had a really bad rash at about a month old. It hadn't spread a lot, but what was there would bleed a bit. We tried: butt paste & desitin and neither were doing any good. We took her to the Doctor and she recommended the Triple Paste and then also prescribe bacitracin since it was kinda an open sore. That combo cleared it up.
We use a cream called Dr. Smith's every now and then for prevention that we really like. I like that it doesn't have that diaper creme smell - I hate the smell of Desitin.
DD#1 I never used anything. She never had diaper rash until she was 19 months old and her diaper got quite a bit neglected when I was in the hospital.
My twins I use aquaphor at night only. When they do get the occasional rash, Triple paste works best for them.