Are you sure it's hematoma? I didn't have it after my surgery. Postoperative hematoma is basically a localized collection of blood in the surgery site. In mild cases, the bleeding is minimal, and stops or reabsorbs on its own like the natural blood clotting mechanism. However, in severe cases, the hematoma gets large enough to compress the tissues and prevent oxygen from reaching the skin, resulting in the eventual dying of skin. This may further increase the risks of having other complications like infection, wound separation and necrosis. Hematoma after surgery treatment usually depends upon the severity of the condition. For example, in mild cases, the hematoma dissolves automatically after a couple of days. However in severe cases, wherein the hematoma enlarges, a surgery would be conducted in order to re-open the wound, drain out the accumulated blood and clamp down the blood vessels, in case, the bleeding still persists. Some analgesics and anti-inflammatory drugs or medications like ibuprofen (Motrin) and acetaminophen (Tylenol) can be considered in order to relief the pain or discomfort. Did you stop coughing?