Underarm surgery scars usually do not exist a complete elimination of the method, can be improved through drug treatment, surgical treatment and so on. 1. Medication: you can use drugs such as Mucopolysaccharides Polysulfate Cream and Sodium Allantoin Compound Heparin Gel under the guidance of doctor, the use of drugs may cause adverse reactions such as itching and burning sensation, and is prohibited for those who are allergic to drugs. Local injection of tretinoin and other ways to soften the scar to improve. 2. Surgery: If the scar affects the life and needs to be improved urgently, according to the patient’s own situation, scar laxation + local reshaping surgery, and other ways to repair the scar, after the operation, should pay attention to the wound dryness, cleanliness, and regular medication change on time. It is recommended that patients who are willing to go to regular hospitals to avoid adverse reactions.