One side of the headache neck pain ear pain, may be trigeminal neuralgia, acute otitis media, etc., the patient should consult a doctor in time, clear the cause of the corresponding treatment. 1. Trigeminal neuralgia: transient paroxysmal pain confined to the innervation area of the trigeminal nerve, the patient can be manifested as a headache on one side of the neck pain and ear pain, the pain can be electric shock-like, cut-like. 2. Acute otitis media: a headache neck pain ear pain may also be caused by acute otitis media, children are more common, the patient will also have hearing loss, tinnitus, fever and other symptoms, due to inflammatory secretion stimulation within the tympanic cavity, caused by a side of the ear pain, headache, accompanied by cervical lymph node enlargement, pressure and pain, neck pain. The appearance of one side of the headache neck pain ear pain, it is recommended that the hospital consultation, clear diagnosis and treatment.