You can ice your face after tooth extraction, and it is useful to ice your face after tooth extraction to reduce bleeding and hematoma after tooth extraction. You need to pay attention to the following matters after tooth extraction: 1. Bite clean cotton balls on the location of the extraction wound for 30-60 minutes after tooth extraction for compression to stop bleeding; 2. Eat and drink only 2-3 hours after tooth extraction; 3. Do not brush your teeth and do not rinse your mouth within 24 hours after tooth extraction to prevent the possibility of bleeding and hematoma after tooth extraction. Brush your teeth and rinse your mouth within 24 hours after tooth extraction to prevent the blood clot in the extraction wound from falling off and the possibility of bleeding and hematoma after tooth extraction. 4. Apply a local cold compress, that is, ice on the face, within 24 hours after tooth extraction to reduce the bleeding of the extraction wound and the possibility of hematoma, and apply a hot compress locally after 24 hours after tooth extraction, at which time the possibility of bleeding is very small.