Diabetic patients who cause nerve damage can be recovered after regular and systematic treatment. Diabetic patients are prone to the comorbidity of peripheral neuritis, which usually belongs to the clinically comprehensive response and clinical syndrome after more than 3-5 years of diabetes. At this time, the following drugs can be applied for recovery: I. Application of B vitamins, such as vitamin B1, vitamin B6 and vitamin B12, etc., these B vitamins are able to play a certain role in repairing and damaging the damaged neurons. Second, the nerve damage caused by diabetes mellitus can be lowered by lowering sugar as the fundamental therapeutic effect, must be through good drugs such as insulin injection or oral hypoglycemic drugs to control blood sugar. Third, the application of certain microcirculation improvement drugs, such as prostaglandin, etc., can repair the damaged neurons.