It is normal to be in pain for about 3 to 7 days after a tooth is extracted. Depending on the growth of the tooth, there are differences in the degree of difficulty and trauma of tooth extraction. Usually, the extraction difficulty is low, the trauma port is small, the extraction pain is relatively low, the extraction may feel slight discomfort, and its pain can be relieved in about 3~5 days; if the extraction difficulty is high, the trauma port is large, the pain is relatively long, and it may take 5~7 days to gradually relieve the pain. After tooth extraction, most people will experience reactive pain due to the trauma of the extraction. This pain is affected by the degree of trauma, etc. and lasts for about 3~7 days. However, if the pain lasts too long and even an unusual odor appears at the extraction socket, you should consider whether the tooth extraction has caused a dry socket, and you need to go to the hospital in time for a follow-up examination. If the pain after tooth extraction lasts too long, you should go to the hospital in time for examination, clear diagnosis and early treatment to prevent the condition from aggravating and causing other oral problems.