Drugs that nourish the nerves include B vitamins that nourish the peripheral nerves, such as vitamin B1, vitamin B6, vitamin B12, methylcobalamin, and so on. It also includes nerve growth factor, ganglioside, cerebrolysin, etc., which can promote nerve growth, and also includes drugs that can nourish the central nerve, such as calf serum deprotein, brain protein hydrolysate, etc. However, these drugs generally work relatively slowly, except for B vitamins, other drugs may have certain side effects, such as may cause skin irritation, induce epilepsy, cause kidney function damage, etc. They must be applied normally under the guidance of a doctor, not on their own, to prevent side effects.