After wisdom teeth extraction, pay attention to oral hygiene, dietary attention to the main. 1. Pay attention to oral hygiene: just after wisdom teeth extraction, bite the hemostatic cotton ball to prevent the wound from bleeding. Within 24 hours after extraction, do not brush your teeth and rinse your mouth to protect the wound and avoid bleeding, infection and other complications. 2. Dietary attention: avoid eating within 2 hours after tooth extraction, it is recommended to choose light and soft food after 4 hours, it is recommended to choose liquid or semi-liquid diet, do not eat too hot, too spicy, too acidic, too hard, too greasy food, can not smoke, drink alcohol. After the extraction of wisdom teeth may cause swelling of the gums, pain, blood in the saliva and other symptoms, is a normal recovery process, if more than two days there is bleeding, you should seek medical attention.