A swollen face caused by a toothache can be dangerous. Swollen face caused by toothache is usually due to infection of the wound, if not treated in time, it may cause upward infection, leading to intracranial infection and so on. It is recommended that patients go to the hospital in time for treatment. Toothache is mainly due to the tooth itself or the surrounding tissue lesions, the main symptoms of tooth pain and tooth swelling. If the swelling of the tooth is severe leading to severe facial swelling, it is usually a more serious case of infection and is dangerous. If the symptoms of infection continue to worsen, it may lead to upward infection, resulting in intracranial infection. It is recommended that the patient go to the hospital in time, and actively target the cause of the treatment. Painkillers such as ibuprofen and acetaminophen can be used as prescribed by the doctor to relieve symptoms. If you need to use drugs, you need to use under the guidance of a doctor.