Facial spasm, commonly known as facial twitching, is a paroxysmal involuntary twitching of half of the facial muscles. A typical facial twitch begins around the eyelid on one side and often starts as a paroxysmal throbbing of the lower eyelid. Many people experience “eyelid fluttering” that usually goes away on its own. However, the eyelid twitching in facial muscle spasms instead gradually worsens, spreading from the initial lower eyelid to all the muscles around the eye, then involving the cheek, the corners of the mouth, and in severe cases the broad neck muscles (muscles of the neck) also twitch at the same time. The spasms can recur in a short period of time or stop for a longer period of time. Agitation, emotional stress, and conscious movement of the face may induce spasms. Facial spasms can progress slowly, and prolonged spasms can cause one eyelid to close, preventing daily activities such as reading and driving a car. Frequent seizures can cause severe psychological stress and fear of attending social events and appearing in public, interfering with normal life. Since compression of the facial nerve by blood vessels is the most common cause of facial muscle spasm, “facial nerve decompression” is the most effective treatment for facial muscle spasm. The procedure involves making a 5cm incision behind the patient’s ear, drilling a hole in the skull, and using a special cotton material under a microscope to pad the blood vessels compressing the facial nerve. The whole operation is done under general anesthesia, and more than 90% of the postoperative myospasms disappear permanently.