Half a year after the extraction of toothache need to consult a doctor in time to check, determine the cause of toothache and then symptomatic treatment, you can carry out drug treatment. Toothache six months after tooth extraction may be adjacent teeth inflammation resulting in toothache symptoms, if there is gingivitis, wisdom teeth peri-coronary inflammation and other diseases, you can under the guidance of the doctor to carry out periodontal sequential treatment, peri-coronary rinsing and the use of metronidazole, acetaminophen and other medications. Toothache after tooth extraction may also be the emergence of endodontitis, apical periapical inflammation need to consult a doctor in time for root canal treatment, remove the residual material inside the root canal and then root canal filling, which can relieve toothache. Usually need to pay attention to dental hygiene, keep local clean, diligent brushing, diligent rinsing.