The course of treatment for the use of Rat Nerve Growth Factor is usually four weeks. The main effects of rat nerve growth factor are to promote the recovery of peripheral nerve injury, reduce the number of peripheral nerve injuries and reduce the degree of peripheral nerve sheath edema. It shortens the nerve-muscle action potential latency and promotes the recovery of limb dysfunction due to peripheral nerve injury. Side effects of murine nerve growth factor are mild, mainly pain at the injection site, and some people can have dizziness and insomnia. It should be noted that the safety of using this drug is unknown in pregnant women, lactating women, children, and the elderly, so it should be used with caution. Patients with allergies should use it with caution. In conclusion, the drug needs to be used under the guidance of a physician, and if the symptoms are not relieved after the use of the drug, patients are advised to consult a neurologist in time.