Beijing Meilianchen Plastic Surgery Hospital says that alar plastic surgery can also change the triangle between your nose and your upper lip. You can also make such improvements to correct the congenital defects or injuries of the nose, and even help to relieve some breathing difficulties. Therefore, the function of alar plastic surgery is very powerful and the effect is very good. But before operation, we must pay attention to some matters and cooperate with doctors better. 1. Do not take drugs containing aspirin for two weeks before nasal alar plastic surgery, because aspirin will reduce platelet coagulation function; 2. Patients with hypertension and diabetes should inform the doctor of their condition at the time of initial diagnosis, so that the doctor can confirm the nasal alar plastic surgery plan; 3. Make sure that you are healthy and have no infectious diseases or other body inflammations before nose wing plastic surgery; 4. Don't put on makeup before nasal alar plastic surgery; 5. Women should avoid the menstrual period and do plastic surgery on the alar; 6. Men should quit smoking one week in advance for nasal alar plastic surgery.