The pain after tooth extraction is a physiological phenomenon in most cases, which usually starts to appear one hour after tooth extraction, because the anesthetic effect will gradually dissipate at this time, and the pain under the natural trauma due to the formation of trauma by tooth extraction is a normal physiological phenomenon not to worry too much, and most patients can tolerate it. If the pain is particularly severe and difficult to tolerate, you can consider applying pain medication, mainly antipyretic and analgesic drugs of the first stage of pain, commonly aspirin, ibuprofen, etc. But it should be noted that if there is still very severe pain 3-4 days after tooth extraction and the pain is gradually increasing, you must pay attention to it and go to the stomatology department again if necessary to prevent the appearance of infection after tooth extraction.