Pain behind the cheek below the ear needs to be treated according to its cause, such as dental caries, mumps, otitis externa, etc. After clear diagnosis, general treatment, drug treatment, filling treatment, etc. are chosen. 1. Dental caries: Dental caries can cause the phenomenon of pain behind the cheeks below the ears, and may even be transformed into pulpitis, apical periodontitis and other diseases. If the pain is severe, you can choose ibuprofen and meloxicam to relieve the symptoms. Secondly, you need to go to the hospital as soon as possible to take out the decayed material in the carious cavity, and then carry out filling treatment. 2. Mumps: Mumps can also cause pain behind the cheeks below the ears. If it is a bacterial infection, antibiotic drugs such as amoxicillin and cefdinir are needed. If there is a viral infection, medications such as ribavirin and acyclovir are needed. 3. otitis externa: pain in the back of the cheek below the ear may be due to otitis externa, pay attention to ear care, do not pick at the ear with your hands, and then with levofloxacin ear drops, ofloxacin ear drops and other drugs. There are many reasons for the pain in the back of the cheek below the ear, after the symptoms, it is recommended to go to the hospital in time to improve the examination, and follow the doctor’s instructions for treatment.