If the face is swollen after tooth extraction, local cold and hot compresses can be applied under the guidance of the doctor, which can relieve the swelling and pain after 2-3 days. If the symptoms continue to be unrelieved, prompt medical consultation should be made. Specific measures are as follows: 1. Cold compress: applying cold compress within 48 hours can induce local vasoconstriction, reduce bleeding, and achieve the effect of reducing swelling and pain. Use a towel to wrap ice on the lateral part of the tooth extraction, avoid direct contact with the skin to prevent frostbite, or choose to place an ice pack in the refrigerator freezer layer. Cold compress time should not last too long, each compress 10-15 minutes should rest for a while and then compress; 2, hot compress: 48 hours after the hot compress, can improve the local blood circulation of the wound, promote the swelling to subside. You can use hot towels, hot water bags on the face, do not contain hot water in the mouth for hot compresses, to avoid causing bleeding. Each time 15-20 minutes, pay attention to the temperature of the hot compress to avoid burns; 3. Anti-inflammatory: applying anti-inflammatory drugs or adding hormonal drugs if necessary, such as cephalosporin, ornidazole or levofloxacin, under the guidance of the doctor, can reduce the facial swelling after tooth extraction and also prevent infection. In addition, after tooth extraction, pay attention to keep the mouth clean and eat more light, warm and cool food to avoid overly hot and hard food causing re-injury to the trauma and bleeding.