主题：【求助】我家贝贝好可怜，出生才8天就生了尿布疹 -- 平方°

I don't think it is wastful. I actually replace it less than 2 hours. Anyway, it is up to you.

I would like to recommend two diaper rash cream for you. My pediatrician recommended to me. I tried and found them really good. One is A+D Original Ointment. It contains some artificial fregrance, which I don't like, but luckily my baby is not alergic to it at all. The second is A+D Original ZnO2 Cream. It contains Zinc Dioxide. I prefer the first because the second makes my baby's butt dry like a piece of paper. But since your child already has diaper rash, the second might be better for you.

Good luck.