The effect of B vitamins in regulating nerves depends mainly on the disease causing the nerve dysfunction, for example, in peripheral neuropathy patients can have sensory impairment and can apply B vitamins, which are generally less effective. There is no specific treatment for this disease. Glucocorticoids, such as dexamethasone and prednisone, can be used in the early stage and may reduce the patient’s symptoms. If the patient has peripheral neuritis, B vitamins can be applied, and the cause of the disease should be controlled, such as abstaining from alcohol when caused by alcoholism, and actively controlling the patient’s blood sugar when caused by diabetes. If the patient has chronic cerebral ischemia or peripheral blood circulation disorder, he should be given drugs to improve blood circulation, such as Shuxin and Vibramodone, etc. B vitamins belong to an auxiliary therapeutic drug, which can also be applied if the patient has sensory disorder caused by cerebrovascular disease, usually vitamin B12. If there is neuroedema, vitamin B1 can be applied, etc.