Leg neuritis refers to all kinds of neuritis in the leg, such as lateral femoral dermatitis, sciatic neuritis, etc. It is mostly caused by viral infection, diabetes mellitus, lumbar disc herniation, and can be treated with antiviral, nutritive nerves, hypoglycemic drugs, diuretics and other drugs. 1. Viral infection: there can be oral antiviral drugs, such as acyclovir, etc., and at the same time give nutritional nerve drugs for symptomatic treatment, such as vitamin B1, methylcobalamin and so on. 2. Diabetes: metformin, acarbose, glipizide, etc. can be taken to control blood sugar, oral vitamin B1, methylcobalamin and other nutritive nerve drugs symptomatic treatment. 3. Lumbar disc herniation: it can be treated by using vitamin B1, methylcobalamin and other nutritive nerve drugs, ibuprofen, pregabalin and other pain medications can be given to symptomatic treatment, conservative treatment is poor, feasible surgical treatment. When neuritis in the leg, it is recommended to consult a doctor in time to clarify the cause of the targeted treatment, do not blindly self-medication.