painful lumps
in the anus/rectum, pain and swelling
in the anus or buttocks area, painful bowel movements, fever/ or night sweats, and abdominal pain.
Antibiotics treat the infection that has caused the abscess. The specific antibiotic depends on what infectious organism has caused the abscess. Whether the abscess is drained or not, antibiotics are always used to treat the underlying infection.
Needle aspiration of the abscess to remove the infectious fluid.