I hate the medical field sometimes. You have incompetent PA's and derms coming out of school left and right. Anyways, I would try and get a scr1pt for Nystatin if you think it's fungal. It's a pretty broad spectrum antifungal. I used the ointment version and it helped my lips, but I'm not too sure if it was the active ingredient that helped or just the petroleum base it comes in? Worth a shot though!!