Herpetic neuralgia is equivalent to the Chinese medicine “tangled waist fire Dan”, traditional Chinese medicine has a certain effect of relief. According to the patient’s performance to identify the drug. 1. Toxic-heat blazing evidence: the affected area of the skin inflammation red, can be seen in clusters of groups of banded distribution of papules or blisters with tense walls. Accompanied by dry throat and bitter mouth, constipation, ulcer and other systemic symptoms, etc., can be used gentian diarrhea liver soup plus reduction. 2. Dampness-heat fighting knot evidence: the skin of the affected area is light red, the blisters are dense and grouped, broken and flowing, the blister liquid is turbid. Accompanied by dullness (no appetite, less food), abdominal distension and other systemic symptoms, etc., can be used to remove dampness and stomach Ling Tang plus reduction. It is recommended that patients seek medical advice in a timely manner, under the guidance of the doctor to use drugs, do not self-medication, so as not to delay the condition!