You can eat 2 hours after wisdom tooth extraction, mainly liquid or soft food, such as porridge, milk, and soft bread. 2-4 hours after tooth extraction, you should eat cold food, cold food can reduce the pain and edema of teeth. Cold food can stop bleeding and promote vasoconstriction to reduce the possibility of bleeding. Try not to chew on the lateral side, and do not eat hard or tough food to prevent food from being retained or embedded in the gum space and causing contamination to the wound. After 1 day of tooth extraction, you can eat soft or liquid food or semi-liquid food, such as egg custard, soft vegetables, porridge or steamed bread, and pay attention to maintaining oral hygiene.