There may be some bruising. This usually clears up spontaneously. Sometimes, the patient needs another procedure to close a blood vessel. An infection is rare, and it causes painful, warm and swollen ears. This may occur in the first week after the procedure and is treated with antibiotics. In exceptional cases, a scar does not heal properly and thickens. This causes something called a keloid and may require corticosteroid injections. The risk is minimal because I do not remove any skin during the procedure, and it does not tighten up.