Numbness of the lower lip after tooth extraction in fact there are two cases: 1, just after the extraction of teeth to play the anesthetic strength has not gone down, this time the lower lip is also numb, in fact, each person’s situation is different, some people may be half an hour after the extraction of teeth, the anesthetic strength slowly slowly go down, but some people may be half a day or to the next day in the morning, the lips are still a little bit of numbness, and their own metabolism for anesthesia is related to, some people metabolize quickly go down a little faster, some people metabolize slowly go down a little slow! However, some people may still have a little numbness in their lips in half a day or in the morning of the next day, which is related to their metabolism of the anesthetic. There is no need to worry about this situation, just need to wait slowly. But during this period, we must remember not to eat hot things, do not bite through the lower lip, because at this time, bite through, scalded, is not known; 2, by the nerve damage, because the lower lip and the lower alveolar nerve or chin nerve has a very close relationship. If the nerve is damaged, the lower lip is also numb. If the numbness is caused by nerve damage, it is necessary for the doctor to give appropriate treatment, such as taking some nutritive nerve drugs, such as methylcobalamin, to promote the recovery of the nerves, and there are also some bottles, such as dexamethasone or other medications, which means that if the nerve is damaged, it is necessary to find a doctor.