Heat rash?

Tori

So, Friday, May 10th I went to the gynecologist. A few days later I started to get a heat rash, well I still have it and it's even on my lady part (the lips) It's tender to touch, I've tried oatmeal baths, baking soda, baby powder, and diaper rash cream. I don't know what's going on, or of I still would be havin a reaction to the lubricant the doctor used. I'll go to the doctor Thursday or Friday, those are my only days off this week