But seriously, this rash is driving me potty. I've had it flare up before and was prescribed steroids and antifungals. The antifungals did nothing and the steroids made it worse. What is it? It's so itchy and keeps me up at night, I can't wear a bra. Nothing seems to be giving me any relief with it. It's on top of my breasts and I haven't been sweaty so don't think it's a sweat rash.