Diaper rash from hell (day 7)

My 9 months old has a really bad diaper rash. I’ve taken him to the doctor twice already and I’m going to call in just a minute again. They gave me a prescription diaper rash cream which has been helping somewhat.. especially if I put it on and then like 5 min later put aquafor over it

But he’s been pooping like 6 times in an hour and it’s liquid… and this has been going on for 7 days now.

I’ve been giving him bananas, rice, and breast milk.. the pediatrician told me the rice would soak up whatever is in his stomach that’s causing his poops to be acidic… I thought for sure the banana would help because bananas usually make babies constipated but it hasn’t done anything yet

I haven’t changed my diet whatsoever and around a month ago we got him allergy tested with a blood test and we have been avoiding everything he’s allergic to as well.

Pretty much the only thing that’s been helping is warm baths

Does anyone have any suggestions? I’m hoping I can get ahold of the doctor today. She was out of the office yesterday and never called back.

I was up all night changing diapers 😭