Thanks genarr VERY SOUND advice!
I just talked on the phone with a neurologist who's a friend of a friend, he is not familiar with the issues of abcess but he did help me out on what to do. He said I should head straight to the ER and tell them I got stuck with something, just like you said. I think since it's in the glute I'd tell them I was sitting on a bench that and something poked me. I don't believe they'll buy the story, especially that i am somewhat muscular and shaved, and a 23g makes a little hole, makes nonesense but anyway, not to play with health I guess. damn I HATE hospitals.