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 inform the doctor of their condition at the time of initial diagnosis, 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 menstruation and lactation cycle;

6. Take a bath before the operation and keep your nose clean and hygienic.

I hope Jia Shangyi's answer in Chaoyang District, Beijing can help you. I wish you good health and a happy mood!