Precautions after extraction of obstructed teeth 1. Remove the cotton ball 1 hour after extraction, food and water can be eaten 2 hours after surgery. 2. 24 hours after surgery, rinse the mouth and brush the teeth, and do not rinse the mouth with force. 3. 2 days after surgery, it is advisable to eat cool, soft and thin food, do not eat stimulating and spicy food, do not smoke and drink. 4, about 3 days after surgery, if there is an abnormal odor of the mouth, abnormal secretions, severely restricted mouth opening, significant local swelling, high heat is recommended to promptly follow up, if necessary, intravenous use of antibiotics. 5, 24 hours after the operation flesh leaps to plant Kanasa about stumbling mackerel 1-2 days after the local hot compress, the use of hot salt water containing rinse can reduce local swelling.