In life, if the patient has a burst of pain in the left ear, it is very likely to be due to mental stress or lack of rest, there is a spasm of the nerve. In this case, rub your ear, rest and relax, the pain should improve significantly. However, if the pain persists, it is recommended that the patient go to the hospital for a checkup, mainly to see if there is any inflammation of the mucous membrane of the ear canal and the tympanic membrane. If it is caused by inflammation, you can consider using lomefloxacin hydrochloride ear drops. If there is no inflammation of the ear canal mucosa and tympanic membrane, in this case, the main consideration is the nerve factor, the patient needs to take oral methylcobalamin dispersible tablets for nerve nutrition. If the pain is unbearable, you can add some pain medication, commonly used is acetaminophen tablets, after active treatment, the patient’s condition will gradually improve.