The efficacy of Wu Bei Zi is to astringe the lungs (astringent lung qi) to reduce fire, astringent intestines to stop diarrhea (relieves diarrhea by enhancing the astringent function of the intestines), astringent sweating, stopping bleeding, and collecting dampness and astringent sores. It is mainly used for the treatment of prolonged coughing due to lung deficiency, coughing with phlegm due to lung heat, prolonged diarrhea and diarrhea, thirst, and blood in stool. Five times the flavor of sour, astringent, cold. Attributed to the lung, large intestine, kidney meridian. Clinically used in the treatment of lung deficiency and chronic cough, lung-heat and phlegm cough, chronic diarrhea and dysentery, spontaneous sweating (involuntary sweating during the day, sweating is aggravated by the slightest movement), night sweating (sweating abnormally after falling asleep, sweating stops after waking up), thirst, hemorrhoidal hemorrhoidal blood in the stool, bleeding from wounds and other diseases. This product can be used externally to collect dampness and astringent sores, and has the function of detoxification and swelling. It can be used to treat wet sores and running water, ulcers without convergence, sores and swollen poisons, anal prolapse, prolapse of the uterus, etc. It can be used as a single flavor or combined with alum powder for external application or decoction and fumigation. However, this product is contraindicated for people with damp-heat diarrhea (diarrhea caused by feeling damp-heat evil). If you need to use the drug is recommended to be used under the guidance of a traditional Chinese medicine practitioner to identify the evidence, unauthorized use of drugs may cause adverse consequences.