【Nature and flavor】Bitter, pungent, neutral. Enters the lung meridian.
 【Effects】 Clear the lungs, resolve phlegm, relieve sore throat, and discharge pus.
 [Indications] Cough due to exogenous factors, sore throat, pus vomiting from lung abscess, chest fullness and flank pain, and abdominal pain due to dysentery.
 [Contraindications] This product is ascending and dispersing in nature. It is not suitable for use in cases of upward flow of qi, vomiting, choking, coughing, dizziness, hemoptysis caused by yin deficiency and hyperactivity of fire, etc. Excessive use may cause nausea and vomiting.
 【Medical records】
 "Ben Jing": "It is used to treat chest and flank pain as if stabbed by a knife, abdominal distension, rumbling in the intestines, and panic and palpitations."
 "Bie Lu": "It benefits the five internal organs, intestines and stomach, replenishes blood and qi, eliminates cold and heat, rheumatism, warms the middle and digests food, and treats sore throat and pharynx."
 "Medicinal Properties": "It can treat dysentery, break up blood, remove accumulated qi, eliminate accumulation, phlegm, treat lung heat and qi-induced cough, eliminate cold pain in the abdomen, treat nausea and convulsions in children."
 "Rihuazi Bencao": "It can relieve all kinds of qi, stop cholera and cramps, heart and stomach distension and pain, replenish the five kinds of fatigue, nourish qi, eliminate evil and warm, replenish deficiency and eliminate phlegm, break up tumors, nourish blood and discharge pus, replenish internal leakage and throat paralysis."
 "Compendium of Materia Medica": "It can treat lung abscess."
 "Pearl Capsule": "It can treat sore throat, benefit lung qi, and treat nasal congestion."
 Li Gao: "It benefits the chest and diaphragm, treats congestion and pain in the throat, breaks up stagnant qi and lumps, eliminates wind-heat in the lungs, clears the head and eyes, and benefits the orifices."
 "Compendium of Materia Medica": "It is used to treat oral ulcers, red and swollen eyes."
 【Predecessors release medicine】
 "Compendium of Materia Medica": "Zhu Gong's "Book of Living" treats chest fullness without pain, using Platycodon grandiflorum and Atractylodes lancea, which can clear the lungs and benefit the diaphragm; Zhang Zhongjing's "Treatise on Febrile Diseases" treats cold chest congestion, using Platycodon grandiflorum, Fritillaria thunbergii, and Croton tiglium, which can warm the middle, digest food, and break up accumulation; and treats lung abscess with spitting pus, using Platycodon grandiflorum and Licorice, which can clear the lungs with bitterness and pungentness, purge fire with sweetness and warmth, and can also discharge pus and blood and replenish internal leakage. Platycodon grandiflorum is also used to treat sore throat caused by Shaoyin syndrome for two or three days. Licorice is used for its bitterness and pungentness to dispel cold, and its sweetness and mildness to eliminate heat. When used together, it can regulate cold and heat. Later generations renamed it Ganjue Decoction, which can treat all diseases of the throat, mouth and tongue. Song Renzong added schizonepeta, saposhnikovia and forsythia to the soup, and it was named Rushengtang, which exaggerates its effectiveness. Wang Haogu's "Yi Lei Yuanrong" records it in great detail, saying that if aphonia is added, add terminalia, if the voice cannot be heard, add tangerine peel, if salivation and cough are treated, add rhizoma anemarrhenae and fritillariae, if cough and thirst are treated, add schisandra, if alcohol poisoning is treated, add kudzu root, if shortness of breath is treated, add ginseng, if vomiting is treated, add pinellia and fresh ginger, if spitting pus and blood is treated, add donkey hide gelatin for pulmonary emphysema, if chest discomfort is treated, add citrus aurantium for chest distension, add immature bitter orange for red eyes, add gardenia and rhubarb for facial swelling, add poria for skin pain, add astragalus for skin rashes, add saposhnikovia and schizonepeta, add dactyly and rhubarb for epidemic poisoning, and add gardenia for insomnia.
 "Ben Cao Jing Shu": "Plantago, judging from the diseases it treats, should be bitter, sweet and neutral, slightly warm and non-toxic. When the pathogen of cold is in the chest and ribs, the pain is like a knife stabbing; when the pathogen is in the middle burner, the abdomen is full and the intestines are rumbling. The pungent and ascending properties, the bitter and sweet properties will dissipate the pathogen and harmonize the qi, and all symptoms will naturally subside. It treats fear and palpitations, and this symptom is caused by insufficient qi and blood in the heart and spleen. Among the various heart-tonifying drugs, Platycodon grandiflorum can be used to serve as a boat and a carrier, which is the function of the assistant. "Bie Lu" benefits the five internal organs, intestines and stomach, and replenishes blood and qi, which means that the pathogen will be dissipated and the internal organs, intestines and stomach will be harmonious. , blood and Qi are naturally generated when they are harmonious. It can eliminate cold, heat, wind and arthralgia, warm the middle, treat sore throat and throat, and remove poison, all of which have the function of dispersing evil, removing toxins and promoting the flow of qi. It can help digestion, because it can lift up Yang Qi and make it stay in the middle burner instead of sinking, so that the Yang Qi in the spleen can float for a long time and the food can be digested by itself. Zhen Quan uses it to treat dysentery and remove lung heat and shortness of breath, because it can lift up and dissipate evil. Rihuazi is used to eliminate evil and plague, and discharge pus from lung abscesses; Jiegu is used to open the orifices, eliminate wind and heat in the lungs, clear the head and eyes, and relieve stagnant Qi and pain in the throat, chest and diaphragm, and remove nasal congestion, because it enters the lungs to open and harmonize. "
 "Compendium of Materia Medica" states: "The use of Platycodon grandiflorum is that it enters the lung meridian. The lung is the organ that controls qi, so it can make all qi descend. The common people think that Platycodon grandiflorum is a rising agent that cannot descend, thus losing its use."
 "Compendium of Materia Medica Chongyuan": "Plantago can treat flank pain in Shaoyang, chest pain in the upper Jiao, intestinal rumbling in the middle Jiao, and abdominal distension in the lower Jiao. Also, fright causes the Qi to go up, fear causes the Qi to go down, and palpitations cause movement in the middle. Platycodon is a medicine for Qi, and can treat the upper, middle, and lower Jiao."
 "Compendium of Materia Medica" states: "Plantago, according to the book, can lead all medicines to go up, and can also lower qi. What is the meaning of this? It is because the internal organs of the human body, the chest and diaphragm, are originally valued for their smoothness. Once blocked by cold evil, the qi and blood will not flow. If it is in the lungs, it may be unfavorable, and symptoms include phlegm accumulation, shortness of breath, and nasal congestion; if it is in the Yangming meridian, it may be caused by the combination of wind and heat, and toothache; if it is in the Shaoyin meridian, it may be caused by the cold blocking the fire, and the eyes will be red, the throat will be numb, and the pharynx will be sore; if the fire is blocked in the lungs for a long time, the mouth will be Lung abscesses and dry cough; fire stagnation in the upper part of the body causes stabbing pain in the chest and diaphragm; lung fire moves to the large intestine, causing diarrhea, abdominal pain, abdominal distension, and bowel sounds. All of these are caused by cold stagnation in the lungs, which blocks the passages, so that the clear qi cannot go up and the turbid qi cannot go down. Platycodon grandiflorum is a medicine that can open up and raise the lung qi. It can be a boat for other medicines, carrying them to the upper part, and can lead bitter and purgative medicines to the highest level. Once the clear qi is able to rise, the turbid qi will naturally go down. This is the root of the theory of descending qi."
 "Yao Zheng": "Plantago is mainly used to treat turbid spitting and swelling and pus, and also treats sore throat. ... Zhongjing said: For sore throat, you can use Licorice Decoction, and if it does not heal, use Platycodon Decoction. Licorice can relieve the urgency of the poison, but turbid spitting and pus are not the main symptoms of licorice, so if it does not heal, add Platycodon. From this point of view, Platycodon Decoction is used for urgent swelling and pain, and Paipu Decoction is used for turbid spitting and pus."
 Chongqing Hall Essays: "Plantago grandiflora can relieve the stagnation of lung qi and relieve the depression of heart qi, and is a medicine for the upper Jiao. When the lung qi is relieved, the internal organs qi can flow, so it can also treat abdominal pain and diarrhea. The ancients said that it has descending properties while ascending. However, after all, it is an ascending medicine, and it can be used if the disease is a solid syndrome of the upper Jiao and there is no disease in the lower Jiao; if the lower Jiao is yin-deficient and the floating fire is easy to move, it should be used with caution. Although the disease is seen in the upper Jiao, it is especially contraindicated if it originates from the lower Jiao. The ancients' theory of boats and boats is the most easily misunderstood. People. Medicines with light and clear smells and flavors are all used to treat the upper part of the body. It is already troublesome to carry them with a boat. Medicines with heavy qualities and thick flavors are all used to treat the lower part of the body. It is even more meaningless to carry them upward. Therefore, not only can it not be used for diseases of the lower part of the body, but also for diseases of the upper part of the body, it can only be used when the evil is blocked in the lungs, the qi is stagnant in the heart, and it is knotted in the yang. For example, symptoms such as throat phlegm and cough are only suitable for those with wind-cold external closure. Not only is it forbidden to use medicines for internal injuries caused by yin deficiency, but it is also not suitable for those with rising fire poison that should be cleared and lowered. "