Patients need to bite on cotton balls for 30-60 minutes after extraction for compression to stop bleeding. If very good hemostasis is not performed, it is likely to lead to bleeding, hematoma, and blood clot dislodgement in the extraction wound, which will then lead to inflammation, infection, and dry socket. The precautions after tooth extraction are as follows: i. After tooth extraction, it is necessary to bite clean cotton balls for compression to stop bleeding in the location of the extraction wound, about 30-60 minutes. II. You can drink and eat only 2-3 hours after tooth extraction, and you need to eat warm, cool and soft food, not spicy and stimulating food. Third, you cannot brush and rinse your mouth within 24 hours after tooth extraction to prevent the blood clot from falling off, and you can drink water, but you cannot rinse your mouth or use a straw. IV. You can selectively take oral antibiotics and painkillers for symptom relief after tooth extraction.