Diabetic peripheral neuropathy can only be controlled and improved with medication, but not cured or cured. The complications of diabetes, whether they are macrovascular complications or microvascular lesions, such as retinopathy and nephropathy, are irreversible damage, and can only be controlled and improved by medication, but cannot be cured. From this point of view, diabetic patients must strictly control their blood sugar in order to delay or minimize the occurrence of diabetic complications. For peripheral neuropathy in diabetic patients, currently only oral medication is the main treatment, like epalrestat, methylcobalamin tablets or lipoic acid, which are all effective in treating peripheral neuropathy in diabetes.