Trigeminal neuralgia is a common facial pain disorder, mainly manifested by recurrent paroxysmal, lightning-like, knife-like, burning-like, intractable, transient and severe pain in the distribution area of the trigeminal nerve on one side of the face. The age of onset is mostly above 40 years old, with more middle-aged and elderly people, and more women than men, with a ratio of about 3:2; the incidence may increase with age. During the seizure period, it often reflexively causes muscle twitching and skin flushing on the same side, conjunctival congestion, lacrimation, salivation, and seizures caused by talking, chewing, brushing teeth, rinsing mouth, washing face and other actions touching the face or a point in the mouth. As a result, the patient is often afraid to make a sound, wipe the face, or even interfere with eating. The pain lasts for a few seconds or minutes, with periodic attacks, often without warning before the attack, and intermittent periods as normal. Each pain attack lasts from only a few seconds to 1 to 2 minutes and stops abruptly. At the beginning of the disease, the number of attacks is small and the interval is long. As the disease progresses, the attacks become more frequent, the interval is gradually shortened, and the pain is gradually aggravated and intense. Light touch or stimulation of trigger points (also called trigger points, often located in the upper lip, nose, gums, corners of the mouth, tongue, eyebrows, etc.) can trigger painful episodes. There are no limited abnormal signs on neurological examination. Trigeminal neuralgia is similar to head wind and headache in Chinese medicine, and is a disease of the head and facial meridians. The location of the disease is mostly in the Shaoyang-Tsunyin meridian. The pathogenesis of trigeminal neuralgia is mostly due to wind and cold, wind (liver) and fire, and wind (liver) and yang disturbing the clear air. Wind is the longest of all diseases, with cold, heat and other guest evil offending the head and face meridians, so that the meridians do not pass and pain. The wind is good at moving several times, so the pain is sudden and abrupt; the disease is mostly caused by emotional and mental disorders, leading to liver wind, or liver depression and fire, wind and fire disturbing the clear orifices and pain.