Diabetic neuropathy is one of the most common complications of diabetes mellitus, and the lesions can involve both central and peripheral nerves, with the latter being particularly common. The etiology and pathogenesis of diabetic peripheral neuropathy are not yet clear. Its incidence is related to the course of the disease, with nearly 60%-90% of patients having varying degrees of neuropathy, 30%-40% of whom are asymptomatic. Diabetic neuropathy can involve sensory nerves, motor nerves and autonomic nerves, but the sensory nerves are the most common, producing pain, numbness, coldness, ankylosis, burning sensation, etc.. It seriously affects the quality of life of diabetic patients. The diagnosis of diabetic neuropathy is not difficult with a history of diabetes and abnormal sensation in the extremities (at least both lower extremities), such as pain, numbness, chills, burning sensation, ankle sensation, etc., bilateral or one side of the ankle reflexes are diminished or absent, and electromyography, nerve conduction velocity is reduced. After meeting the above conditions, peripheral neuropathy caused by other diseases, such as thyroid disease, uremia, alcoholism, etc., should also be excluded. After the diagnosis is confirmed, the first step is the routine treatment of diabetes, i.e. diabetic diet, basic diabetes education, exercise therapy, oral hypoglycemic drugs and/or insulin injections, etc., so that the blood glucose control can reach the standard or basic standard. At the same time, mecobalamin (vitamin B12 preparation) and injections such as Danshen, Panax notoginseng or Chuanxiong are routinely administered intravenously. On the basis of the above treatment, Chinese herbal medicine is added to treat the internal medicine and external footbath. Internal tablet: 1.Qi deficiency and blood stasis: the symptoms are weakness and lassitude, shortage of breath and fatigue, sweating when moving, numbness and pain in the limbs, lack of warmth at the end of the four, or dry mouth and desire to drink, loose food and urine, pale tongue with white fur, slow or weak pulse. The treatment is to benefit the Qi, invigorate the Blood and open the veins. Commonly used drugs are: 30g of Astragalus membranaceus, 10g of Radix Angelicae Sinensis, 10g of Chuanxiong Ligustici, 10g of Peach kernel, 10g of Safflower, 12g of Chuan Niu Knee, 15g of each of Red and White peony, 10g of Cinnamon stick, 10g of Dilong, 30g of Chicken Blood Vine, 30g of Xanthopanax, etc. 2.Qi and Yin deficiency: symptoms include tiredness and weakness, weakness of limbs, numbness and pain, ankylosis or burning pain, dry mouth and throat, excessive drinking and urination, dryness and redness of the stool, fever, dizziness and tinnitus, soreness and weakness of the waist and knees, red tongue with little fluid, thin or little coating, weak or thin pulse. The treatment is to benefit Qi and nourish Yin, invigorate blood and open the veins, with medicines such as: prunus ginseng 15g, astragalus 15g, salvia 15g, maitake 10g, dendrobium 10g, yu zhu 10g, rhizome 20g, angelica 10g, chuanxiong 10g, peach kernel 10g, safflower 10g, danshen 15g, chuan huai niu knee 12g, gui zhi 10g, lonicera 20g, etc. 3.Yin and Yang deficiency: the symptoms include fatigue, cold pain in the limbs, muscle atrophy, difficulty walking, dizziness and forgetfulness, dry mouth and throat, frequent urination, irregular bowel movements, fat tongue with tooth marks and yellow coating, or dull red tongue with white coating, and sunken and weak pulse. Treatment is to nourish Yin and Yang, blood circulation, drugs such as: raw and ripe ground 12g each, roasted astragalus 20g, dogwood 12g, Dan Shen 15g, peach kernel 12g, safflower 10g, red and white peony 15g each, Chuan Huai Niu Knee 12g each, Gui Zhi 15g, Xian Ling Spleen 12g, Coix Seed 20g, papaya 15g. External foot bath: autonomous preparation of hemp pain liquid (Tu Fu Ling, Chuan Wu, Cao Wu, Ephedra, Gui Zhi, chicken blood vine etc.), appropriate temperature, external foot bath, 30 minutes per night. Not used for those with broken skin on the foot. Diabetic peripheral neuropathy, from the perspective of Chinese medicine, occurs on the basis of achalasia and is a new pathological stage in the development of achalasia, with deficiency of Qi, blood, yin and Yang as the root, and paralysis by stagnation of blood as the symptom. In this formula, Astragalus membranaceus and Radix et Rhizoma prince ginseng are used to benefit Qi and nourish Yin, and help eliminate blood stasis; Gui Zhi and Xian Ling Spleen are used to warm Yang and open blood vessels; Angelica sinensis, Chuan Xiong, Tao Ren, Hong Hua and Di Long are used to invigorate blood and resolve blood stasis, and move Qi to relieve pain. Modern pharmacological research proves that the products that activate blood circulation and resolve blood stasis have the effects of dilating blood vessels, increasing blood flow in peripheral tissues, inhibiting platelet aggregation, reducing blood viscosity, increasing microcirculatory perfusion in peripheral nerve tissues, improving ischemia and hypoxia, and promoting the functional recovery of damaged nerve tissues. Chinese medicine fumigation treatment can act on the body through the skin mucous membrane with the help of medicine and heat to promote vasodilation and blood circulation, improve the nutrient metabolism of local or systemic tissues, and regulate the functions of local or systemic nerve muscles and organs. Such a combination of Chinese and Western, internal and external treatment of diabetic peripheral neuropathy, to achieve satisfactory results, worthy of clinical promotion and application.