Ear neuralgia may be caused by acute otitis externa, trigeminal neuralgia, viral infection, etc. It may also be caused by mental factors. 1. Acute otitis externa: If water enters the external ear canal during bathing or swimming, causing the skin of the ear to be soaked, leading to the invasion of germs, resulting in inflammation of the external ear canal and the symptom of ear neuralgia. 2. Trigeminal neuralgia: when the patient has trigeminal neuralgia, due to the distribution of trigeminal nerves inside and at the bottom of the ear, it may lead to pain in the anterior and posterior nerves of the ear. 3. Viral infection: When the ear is infected with herpes zoster virus, it may lead to pain in the peripheral nerves of the ear, and it is mostly severe pain. 4. Mental factors: if the patient experiences mental tension, anxiety, lack of sleep, etc., the nerve pain in the ear may occur. When the patient has nerve pain in the ear, he should go to the hospital immediately to clarify the cause of the disease and then actively treat it, so as not to delay the condition.