So basically, this is somewhat embarrassing.. But I have a rash, or at least I think it's a rash on my bum. Around my anus it's really red, and sometimes there's dry flaky skin and it's so itchy.. When I first started noticing it, it wasn't too bad. But then I guess it got a bit worse and now it's so itchy all the time.. and it probably doesn't help that I wear a thong pretty much all the time. Pleasee can anyone tell me what it is before I start jumping to the conclusions of some gentile disease.