Pug Armpits

Pickles Puglet has developed a heat rash under her arms. It was really hot and humid all last week. I noticed she kept scratching her armpits. So I looked and they were all red from where she had scratched them. Stupid puppy. I put some antibiotic ointment on them but that just made them worse - Note to self: don't put ointment on heat rash as it keeps the skin hot and moist. I picked up some diaper rash cream (with oatmeal!) when I was at Wal-mart and that has really helped. I put it on just before she went to bed and by morning her pits were almost normal looking. But I discovered if I don't keep washing and drying her pits and reapplying the cream whenever she gets all hot and sweaty, then she keeps scratching. So several times a day I have to clean her armpits and put diaper rash cream on them. They seem to be getting better now but she still has a few scabs from where she had scratched it so much before. Does this sound as ridiculous to ya'll as it does to me? Whatever works, right?