If the abscess is small and not so painful, patient can take care of it at home. It will get better and disappear by itself. Try not to squeeze or pierce it to drain fluid inside as it might cause infection on the surrounding membranes or blood vessel damage.
If it is large or severely painful, please see a doctor. The doctor will administer antibiotics for treatment. In some cases, an incision might be needed for drainage. A treatment option depends on severity, location, and doctor’s discretion.