1, and try to avoid water accumulation in the surgical site within 7 days after operation;

2. Ensure the surgical site is clean to prevent infection. If there is blood scab or secretion on the wound, it can be wiped with sterile physiological saline.

3. After operation, the local wound can be bandaged with pressure or cold compress with ice packs, but the pressure should not be too high to avoid injury. If there is bleeding or serious hematoma after operation, you should go to the hospital for follow-up in time;

4. Local redness is a common phenomenon, which will disappear within 1-2 days. If it doesn't disappear in 3 days, you should go to the hospital for a follow-up visit and deal with it in time;

5. Swelling will appear after injection and disappear after 1-2 days. If it takes a long time to rule out the possibility of infection, it can be solved by hot compress.