Performance: Mostly blood deficiency and blood stasis 1. Patients feel abnormal sensation in the skin of the extremities such as insects walking, more than pressing, or no pain or itching, pressing without knowing, pinching without feeling, with a sense of thick wood. 2.More often found in the extremities, more often in the fingers and toe ends. 3, generally not accompanied by muscle movement disorders, no obvious muscle atrophy, can be accompanied by hot and cold, pins and needles, ants, moisture, vibration and other sensations. 4, mostly seen in the elderly, women after childbirth or blood loss, prolonged illness, physical weakness and alcoholism, etc. 5, in the numb local may have shallow sensory impairment, its distribution area is often consistent with the direction of the nerve. 6, electromyography, CT, MRI and other auxiliary examinations help to clarify the diagnosis. Because of the diagnosis: can be based on medical history, disease duration, special symptoms and relevant laboratory tests for a comprehensive analysis to determine. Pharmacological: furans and isoniazid are the most common. Toxic: heavy metal or chemical poisoning should be considered if the disease develops in a group. Testing the arsenic content of urine, hair and nails can confirm the diagnosis of arsenic poisoning. Diabetic: history of diabetes mellitus, manifesting sensory, motor, autonomic or mixed, mixed being the most common, with sensory disturbances being the most pronounced. Uremic:About half of the dialysis patients, typical symptoms are the same as distal axonopathy, the initial manifestation of sensory disorders, the lower extremities appear earlier and more severe than the upper extremities, and can improve after dialysis. Nutritional deficiencies; seen in chronic alcoholism, chronic gastrointestinal diseases, pregnancy and after surgery. Malignant tumors: damage to peripheral nerves is mostly localized compression or infiltration; polyneuritis is also seen in paraneoplastic syndrome and POEMS syndrome. Post-infection, seen in leprosy and diphtheria, etc. Hereditary: insidious onset, chronic progression, family history. Dialectical selection of oral herbal soup and Chinese patent medicine 1. phlegm and stasis blocking evidence Treatment: remove phlegm by resolving stasis and activate the meridians Recommended formula: Er Chen Tang combined with Tao Hong Si Wu Tang plus reduction. Fa Xian Xia, Chen Pi, Fu Ling, Tao Ren, Red Flower, Red Peony, Angelica Sinensis, Chuan Xiong, Sheng Di, etc. Chinese patent medicine: blood plugging tablets, etc. 2, damp-heat blockage evidence Treatment: clear heat and dampness, soothe the tendons and activate the collaterals. Recommended formula: Si Miao Wan plus or minus. Atractylodes macrocephala, Phellodendron, Radix et al. Chinese medicine: Si Miao Wan, etc. 3, Qi deficiency and blood stasis evidence Cure: benefit Qi and invigorate blood, resolve blood stasis and open the ligaments Recommended prescriptions: tonifying Yang and Returning Five Soup plus or minus. Astragalus, Angelica, Radix Paeoniae, Dilong, Chuanxiong, Hong Hua, Tao Ren, etc., combined with Danggui Sihui Tang. Proprietary Chinese medicine: Tongsei pulse tablets, etc. 4, blood deficiency does not honor the evidence Treatment: nourish blood, replenish blood, dispel wind and promote the circulation. Recommended remedy: Siwu Tang with added flavor. Radix Angelicae Sinensis, Radix Paeoniae Alba, Rhizoma Ligustici Chuanxiong, Radix Rehmanniae etc. Chinese herbal medicine: Si Wu Tang with flavor, Guei Shen Wan, etc.