What medication can i take for boil in anus?

I take it the boil: Is outside your anus which is most likey either an abscess or a thrombosed hemorrhoid. You dont really need any meds but an exam where some of them can be drained or removed in case of thromb hemorr. I recommend soaking your bottom in warm water for relief till you see your doc.

Need evaluation : Boils or carbuncle could be treated with antibiotics particularly those that cover staph. Sometimes may require incision and drainage if soft and flocculent.