It takes about 3-4 days after tooth extraction for the pain to be gradually relieved, mainly because the body has an inflammatory reaction and the wound of tooth extraction is equivalent to a human wound, so it is normal for the patient to feel pain. 3-4 days or so the soft tissues start to repair and the pain will be gradually eliminated. If the pain is severe, patients can take some oral pain medication and use anti-inflammatory medication to promote early healing of the wound and prevent infection of the extraction wound. Within a week after tooth extraction, patients should not chew food on the side of the tooth extraction to prevent the clot in the extraction socket from falling off, which is not conducive to the healing of the extraction wound and may even easily cause dry socket and aggravate the pain of the patient after tooth extraction. Although it takes three months for the alveolar bone to heal, there is no problem to chew food normally.