The most common cause of facial palsy is idiopathic facial nerve palsy, mostly caused by facial neuritis. After facial nerve palsy, not only the symptoms of facial palsy will appear, but also some people will have pain behind the ear and other symptoms, which may be normal physiological neuralgia, and we should also pay attention to whether it is accompanied by ear disease at the same time. The pain behind the ear after facial palsy may be caused by early viral infection of the facial nerve inflammation, hot compresses can be applied to the affected side to promote local blood circulation, and treatment should be continued according to medical advice. Glucocorticoids can be used for short-term treatment. It should be noted that the application of hormones must follow the doctor’s prescription, and the dosage of drugs should not be adjusted arbitrarily to avoid drug side effects; Chinese herbal medicines can be used in the early stage to clear heat and detoxify and dispel wind, and after the acute stage, Chinese herbal medicines such as blood activation and circulation and benefit of qi can be used to relieve symptoms and speed up recovery; comprehensive treatment such as acupuncture and physiotherapy can prevent sequelae. In addition, pain behind the ear after facial palsy should be noted to exclude otogenic diseases, pay attention to the presence of ear herpes and ear effusion, and exclude the possibility of external ear canal and otitis media. In conclusion, if you have post-facial palsy pain in the ear, you should consult your doctor promptly, continue regular treatment after excluding ear diseases, relax and promote the recovery of nerve function.