Hello, i think i have a boil in my buttocks. (only thinks). i feel ashamed to talk about this. Well, the full story is that 3 years ago i fell down and injured myself (not much) i only cut my left buttocks a bit after hitting a metal. well it became a scar. everything was ok since then. but yesterday i noticed it scratches like if i was bitten by a mosquito but today i found more blood and bit yellowish in the center of it. i also have to mention that it became slightly larger. thanks in adanvce