Hello, I have a rash on the skin between my scrotum and my leg, it is itchy and whenever I itch it, the skin peels and it gets a little bloody, it is also sensitive and all I've tried is washing it with soap and water, but even that is hard considering how sensitive it is, and sometimes it just stays itchy, but other times it stops. I've had it for as long as I remember, more than a few months I think, and it hasn't gotten better or made any progress, is this an STD or an infection that requires medicine? like what do I do to fix this?