[Nature and flavor] Sour and astringent, neutral in nature.
 [return through meridians] returns the liver, spleen, lung and large intestine meridians.
 [Effects] It can nourish the lungs, astringe the intestines, promote the production of body fluids, and calm ascaris.
 [Indications] It is used for chronic cough due to lung deficiency, chronic diarrhea and dysentery, deficiency heat and thirst, ascariasis, vomiting and abdominal pain.
 [Taboo] Do not eat too much or for a long time.
 【Medical records】
 "Ben Jing": "It is used to relieve qi, eliminate heat, irritability, calm the mind, relieve limb pain, hemiplegia, dead muscles, and remove dark moles and bad flesh."
 "Bie Lu": "It stops diarrhea, relieves dry mouth and relieves saliva." "It benefits tendons and veins, and removes numbness."
 "Supplement to Materia Medica": "It can remove phlegm, cure malaria, quench thirst, regulate the stomach, eliminate cold and heat dysentery, and stop vomiting."
 "Rihuazi Materia Medica": "It can eliminate fatigue, treat bone steaming, relieve depression, astringe the intestines and stop dysentery, eliminate alcohol poisoning, treat hemiplegia and skin paralysis, remove black spots, and make people sleep. It can also be made into pills with Jiancha and dried ginger to stop dysentery."
 "Compendium of Materia Medica": "It is often used in prescriptions for treating fever caused by colds, restlessness and fever, cholera, thirst, fatigue, emaciation, and diarrhea caused by postpartum women."
 "The Heart of Medication": "Reinstate the Lung Qi."
 "Compendium of Materia Medica": "It can astringe the lungs and astringe the intestines, treat chronic cough, diarrhea, nausea and vomiting, ascariasis, syncope and vomiting, reduce swelling, spit out phlegm, kill insects, and detoxify fish poison, horse sweat poison, and sulfur poison."
 "Compendium of Materia Medica": "It is used to treat hematuria, bleeding, various blood syndromes, spontaneous sweating, dry mouth and throat."
 【Predecessors release medicine】
 "Ben Cao Jing Shu": "Classic" says: Heat hurts Qi, evil invades the chest, Qi goes up and is irritable, and the heart is uneasy. Wumei tastes sour, can restrain superficial heat, can absorb Qi and return to the origin, so it is the main Qi, remove heat, irritability and calm the heart. Diarrhea is caused by large intestine collapse; salivation and dry mouth are caused by virtual fire and insufficient body fluid; sour can restrain virtual fire, transform body fluid, and consolidate the intestine, so it is the main treatment. It is mainly used for limb pain, hemiplegia and numbness, because dampness soaks into the meridians, which makes the tendons and veins loose, or pain and numbness; the liver governs the tendons, so sour enters the liver and nourishes the tendons. When the liver is nourished, the bones are straight and the tendons are soft, the organs are smooth and the previous symptoms are eliminated.
 "New Edition of Materia Medica": Bird's nest can stop diarrhea and malaria, and it is always effective quickly.
 "Compendium of Materia Medica" says: Wumei is sour, astringent and warm, similar to papaya, but it is astringent when it enters the lungs, astringent when it enters the intestines, soft when it enters the tendons and bones, submerges worms, removes dead muscles, bad meat and bad moles, and pulls them out when it pierces the flesh. Therefore, it can cure chronic diarrhea, dysentery, qi reversal, fullness, stomach nausea and bone steaming due to its astringent nature, and can cure all the lower and upper ailments. It can also be applied to carbuncle, open the clenched jaws of a stroke, cure dizziness and collapse caused by roundworms, and stop thirst. Isn't it a proof of sourness and astringency? It is not like papaya, which is specialized in dredging dampness and heat in the spleen, stomach, tendons and bones, and astringing the dissipated essence of the spleen and lungs, but it is not good for other symptoms. However, the liver likes to disperse and hates to collect, and taking sour food for a long time will also reduce vitality, and it should be avoided at the beginning of various symptoms.