Generally speaking, there are no side effects, but there are some precautions. Precautions before canthoplasty: Do not take drugs containing aspirin within two weeks before canthoplasty, because aspirin will reduce the clotting function of platelets; patients with high blood pressure and diabetes should consult the doctor in detail during the initial diagnosis. The doctor informs the patient of the condition so that the attending doctor can confirm the surgical plan; make sure you are in good health before surgery and have no infectious diseases or other body inflammations; women should avoid menstrual periods; men should quit smoking one week in advance. Precautions after canthoplasty surgery: Try to avoid getting water on the surgical site within 5 days after canthoplasty surgery; make sure the surgical site is clean to prevent infection. If there is blood scab or discharge on the wound, wipe it with sterile saline. After canthoplasty surgery, you can apply pressure to the local wound or use an ice pack to apply cold compress for 30 minutes, but the pressure should not be too high to avoid damaging the eyes. After surgery, you should rest in a quiet and comfortable environment, do not do strenuous activities, and your daily life and work will not be affected. Avoid eating irritating foods such as chili peppers. The stitches are removed 72 hours after canthoplasty surgery.