Baby rash?

Mackenzie • Baby boy born 9/6/18 & 1/18/21 💙💙

Sorry for the awkward picture but my son has a rash and I can’t get him into the dr for another couple of weeks. The larger spots first looked like the smaller ones and I thought it was a heat rash, but now they’ve grown and he’s got these smaller ones forming.

Anyone seen this before or have any guesses as to what it is? I have antifungal cream I’ve been using and it doesn’t seem to be helping.