Bum Bump

So this may seem really gross but I need some opinions. I have this really hard and painful bump on my butt crack like it literally sits in the crack and I walk weird and it hurts like hell. My mom says to keep putting heat compressors on it to make it rise to a head and pop but I think I should go to the doctor. It's also been there for like 1 week and a half because I thought it was a hair bump but I don't think so. Any suggestions ladies?