The Chinese patent medicines for postherpetic neuralgia include Hematology Capsule, Gentian Liver Pill, and Ginseng and Atractylodes Pill. Herpes zoster is a common skin erythema, blisters such as beads, arranged in bands, along one side of the peripheral nerve distribution area, local tingling and other symptoms, belongs to the traditional Chinese medicine “snake string sores” category. The causes of the disease include internal injuries, dietary disorders, old age and physical weakness. The pathogenesis of postherpetic neuralgia is mostly qi stagnation and blood stasis (blood stagnation due to lack of qi flow), dampness-heat in the liver meridian (the liver meridian senses dampness-heat evil qi), and dampness-containing in spleen deficiency. In the type of qi stagnation and blood stasis, it is often accompanied by pain in the area of the rash, radiating to nearby areas, and restlessness. Blood stagnation and blood stasis type, often accompanied by pain in the rash area, radiating to nearby areas, and restlessness in sitting and lying down. Damp-heat type of liver meridian, often accompanied by bright red skin lesions, burning pain, bitter mouth and dry throat, irritability, dry stools and other symptoms. Can use gentian diarrhea liver pill, this drug pregnant women, old and weak, loose stools with caution, should not be taken with tonic drugs, avoid spicy and stimulating food during consumption. Spleen deficiency and dampness type, often accompanied by skin breaks pale color, the mouth can not, less food and abdominal distension, loose stools and other symptoms. Can use ginseng lingbaijutsu pill, this drug diarrhea and stool, anus have a feeling of falling people should not be served, should not be with radish, tea, quinoa, five spirit fat, soap pods, cold medicine served together, should be taken before meals or when eating. If postherpetic neuralgia occurs, please consult a doctor in time to recognize the evidence for treatment.