Muscle throbbing at the left zygomatic bone may be caused by facial muscle spasm, organic diseases, emotional abnormalities and other reasons. 1. Facial muscle spasm: the etiology is not clear at present, it may be related to abnormal excitation of the facial nerve, excessive neuron discharge, and abnormal synaptic conduction. If the symptom occurs occasionally, it can be improved by localized hot compresses. If it has persisted for a long time, standardized treatment is needed. Patients with facial muscle spasm can use botulinum toxin A local injection, can also follow the doctor’s prescription oral carbamazepine to improve the symptoms. 2. Organic diseases: left facial muscle throbbing may be caused by left facial paralysis, cerebral infarction, cerebral hemorrhage and other diseases; it may also be caused by occupational diseases, such as facial nerve compression by blood vessels. If necessary, you can consult neurology or neurosurgery for medication or surgery. 3. Emotional abnormalities: Emotional tension, anxiety, lack of sleep can lead to increased excitability of the left facial muscles, resulting in left facial muscle throbbing. It is recommended that the patient rest properly, can be hot compresses, massage, if necessary, with neurotrophic drug therapy, such as methylcobalamin and so on. If this condition, it is recommended to go to the hospital for a detailed examination, usually pay attention to the warmth of the face, avoid cold, try to eat a light diet, avoid spicy and stimulating food, you can carry out hot compresses to alleviate the symptoms.