diaper rash, not sure what to do anymore

my daughter had a bad diaper rash for about two weeks , tried every cream , tried changing diaper brands and wipes, nothing worked so i took her to the pediatrician. The pediatrician said it was a yeast infection and gave us three different cream prescriptions and directions on how to used them. I used them as directed and it’s been about three weeks and there’s no change. I ran out of the creams and tried calling her doctor for advice and they said i can take her in late next week.

I hate seeing my baby girl in pain, she’s always itching around her diaper and gets frustrated and cries. I’m stuck and i don’t know what else to do to help her :(