Tooth pain with half of the face and ear pain, usually considered to be caused by acute pulpitis, you can choose medication, root canal treatment and so on. 1. Medication: For severe tooth pain, oral ibuprofen extended-release capsules can be used for temporary pain relief. 2. Root canal treatment: the best treatment is to carry out root canal treatment, root canal treatment is firstly to open the pulp drainage, can quickly reduce the pressure of the pulp cavity of the tooth, relieve the tooth pain, and then carry out the root canal exchange and root canal filling. 3. After root canal treatment, the tooth loses nutritional supply and becomes more fragile. It is best to observe the tooth for two weeks after the root canal treatment, and if there is no pain, carry out crown restoration to avoid splitting of the tooth. There are other reasons for tooth pain with half of the face and ear pain, please go to the hospital in time to avoid delay.