1, female patients should avoid menstrual period during operation.
2, local acne, nasal congestion, runny nose and other infectious diseases exist, and thoroughly clean the face.
3. Patients who take anticoagulants, vasodilators and hormones for a long time should stop taking drugs for 1-2 weeks.
4. Stop taking ginseng, ginseng and other supplements.
5. For smokers, quit smoking for 2 weeks before operation.