Lung and lung system >

　　Phlegm-heat accumulates in the lungs, leading to lung failure in宣降, so cough with yellow sputum is difficult to expel; phlegm-heat transforms into fire, burns the lung and injures the meridians, so there is sputum with blood and sore throat; phlegm-heat is stagnant, and the Qi movement is not smooth, so there is chest tightness; dry and bitter mouth is due to severe heat injurying the body fluid; yellow tongue coating and slippery and rapid pulse are all signs of phlegm-heat. Western medicine believes that cough is caused by congestion, edema of the bronchial mucosa, or the accumulation of secretions in the bronchial cavity, which can all cause cough. Coughing up sputum is due to the accumulation of sputum in the lumen after nocturnal sleep, combined with the relative excitement of the parasympathetic nervous system, which increases bronchial secretions.

　　Some chronic cough patients, in addition to most of them being accustomed to buying various cough and expectorant drugs for self-medication, also have the phenomenon of unreasonable application of antibiotics. The unreasonable use of antibiotics has led to an increasing resistance of respiratory flora to antibiotics, which has also brought certain difficulties to treatment, making the course of the disease prolonged or incurable. Prolonged treatment can also trigger acute tracheitis.

　　The symptoms of phlegm-heat cough include cough, yellow and thick phlegm that is difficult to expel, or even blood in the sputum, chest tightness, dry mouth, bitter taste, sore throat, yellow greasy or yellow and white mixed tongue coating, and slippery and rapid pulse.

　　The prevention of phlegm-heat cough lies in reasonable diet, appropriate exercise, and maintaining a good physical condition. Therefore, it is necessary to drink more water and eat more fruits. Strengthen physical exercise to improve one's physical fitness, and it is advisable to choose medical health exercises, Tai Chi, Wuxingxi, and other projects according to one's own physical condition, persist in exercising, which can improve the body's resistance to diseases, and the amount of exercise should be moderate without obvious shortness of breath, rapid heartbeat, and excessive fatigue.

　　The patient needs to undergo the following examinations: chest X-ray, pulmonary and pleural auscultation, pulmonary and pleural percussion, chest CT scan, chest external examination, urine routine, blood routine, stool routine, sputum culture.

　　Patients with phlegm-heat cough should eat a light diet and clear heat to resolve phlegm in their diet.

　　1. Water chestnut and jellyfish drink: 200 grams of water chestnut, 100 grams of jellyfish skin, decoct and take in divided doses.

　　2. White lotus and pampas grass juice: peel and remove the core of the white pear, remove the nodes of the white lotus, chop them in equal amounts, take the juice, and take frequently.

　　3. Bamboo root porridge: 150 grams of fresh bamboo root, 15 grams of bamboo shavings, 3 grams of ginger, 50 grams of粳米. Boil the first two herbs to make a decoction, add rice to cook porridge, add ginger when it is cooked, and cook a little longer.

　　4. Almond sugar: equal parts of bitter almond with skin and rock sugar, grind and mix together, make almond sugar, take 3 grams each in the morning.

　　5. Walnut kernel candy: 150 grams of walnut kernel, 200 grams of rock sugar, 50 grams of hawthorn. First soak the walnut kernel in water and grind into a paste, then boil the hawthorn into juice, remove the residue, add rock sugar and walnut paste, and cook together. Eat as desired.

　　6. Take 15 grams of Semen Benincasae with a little brown sugar, crush and dilute with boiling water, take twice a day.

　　7. Commonly used prepared Chinese patent medicines: Zhijizhuang syrup, Xiansheng Kechuan Ning, Compound Xianzhu Lisui, fresh Xianzhu Lisui, etc.

　　The following is a brief description of the traditional Chinese medicine treatment for phlegm-heat cough:

　　1. Syndrome

　　Symptoms include rough cough sound, thick yellow sputum, difficult expectoration, cough causing chest pain, fever, thirst, yellow urine, red tongue, and rapid and slippery pulse.

　　2. Treatment Principle

　　Clear heat, purify the lungs, and relieve cough.

　　3. Principal Prescription

　　Clear Metal Phlegm Decoction: For patients with lung heat congestion, cough with dyspnea, high fever, and thirst, remove Platycodon grandiflorus and Pericarpium Citri reticulatae, and add Lonicera japonica, Houttuynia cordata, Gypsum fibrosum, and Semen Lepidii to clear heat and reduce phlegm in the lungs.

　　4. Prescriptions

　　Clear Metal Phlegm Decoction with modifications: Scutellaria baicalensis, Gardenia jasminoides, Anemarrhena asphodeloides, Cortex Mori, Semen Benincasae, Bletilla striata, Ophiopogon japonicus, Citrus reticulata Blanco, Poria, Platycodon grandiflorus, Glycyrrhiza uralensis.

　　Commonly used herbs: Cortex Mori, Scutellaria baicalensis, Gardenia jasminoides, Pericarpium Citri reticulatae, Bletilla striata, Citrus reticulata Blanco, Mercurialis, Platycodon grandiflorus, Glycyrrhiza uralensis.

　　For cough with abundant phlegm, add Houttuynia cordata, Semen Lepidii, and Herba Eupatorii to clear the lungs and remove phlegm; for phlegm with blood, irritability, and anger, add Murex, Corydalis, and Scutellaria to soothe the liver and reduce fire; for fever and thirst, add Gypsum and Rhizoma et Rhizoma Ophiopogonis to clear heat and generate fluid; for dry and hard stools, add Semen Benincasae and Rhubarb.