My dd would be so RED from diarrhea her butt was glowing.i always gave her baking soda baths an would leave her diaper off( hard to do with diarrhea) but letting the air get to it helped the most.Desitin would make her scream as did butt paste.
I have tried so many products and the one that has worked the best, hands down, is Ammens Original Medicated Powder. Big white bottle. Just sprinkle it on.
Triple Paste....it's the best be far.....a bit expensive but the only thing that would clear up my any diaper rash in this house!! Good luck!!