The healing of the wound after tooth extraction depends on the clotting of blood in the trabecular area and the epithelial cells of the trabecular margin gradually crawl up and heal. If you rinse your mouth on the day after tooth extraction, it will cause the clot to fall off, the extraction socket, the alveolar bone will be exposed, and dry socket will be easily formed, causing pain. Therefore, you should listen to your doctor’s postoperative advice after tooth extraction, do not rinse your mouth on the day after surgery, you can eat two hours after surgery, and keep in touch with your doctor if there is bleeding.