1. Do not take drugs containing aspirin within two weeks before operation, because aspirin will reduce platelet coagulation function;

2. Patients with hypertension and diabetes should truthfully inform the doctor of their own condition when they are first diagnosed, so that the attending doctor can confirm the operation plan;

3. Make sure that you are in good health before the operation, and there is no infectious disease or other body inflammation;

4. No makeup before operation;

5. Women should avoid menstrual period; 1, and try to avoid water accumulation in the surgical site within 7 days after operation;

2. Avoid eating irritating foods such as peppers;

3. Ensure that the surgical site is clean;