If you truly have puss behind the ear drum the only way to fix it is with a course of antibiotics. If this is a recurrent problem you may need a surgery to place a small tube through the ear drum to allow the fluid or pus to drain out. NEVER attempt to remove it yourself!!! You could rupture the ear drum and cause permanent hearing loss. You should see your Dr. ASAP for his recommendations. In the meantime sometimes warm air from a blow-dryer set on low can help with the pain.