Patients with toothache can take metronidazole tablets, usually the toothache is divided into several cases, as follows: a. Pulpitis caused by tooth decay: for pulpitis, you need to eat anti-inflammatory drugs, including metronidazole, ornidazole or cephalosporins, pain can eat painkillers, such as ibuprofen, but the most critical is to carry out root canal treatment of teeth, open pulp drainage, root canal preparation, the pulp cavity of the pulp nerve cleaned out The pain can be relieved. The wisdom tooth caused by the wisdom tooth pericoronitis: wisdom tooth pericoronitis will form a local gap infection and lead to swelling and pain, eat metronidazole tablets or other types of anti-inflammatory drugs can control the inflammation, infection, wait for the infection control before the wisdom tooth extraction, usually pay attention to good oral hygiene.