Hi and welcome to Healthcaremagic. Thank you for your query. I am Dr. Rommstein, I understand your concerns and I will try to help you as much as I can. This is probably gluteal abscess and the only appropriate treatment is surgical incision and drainage so you should see doctor for it and do further therapy. Antibiotics may not be helpful in this point. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.