The clinical application of deficient asthma is mostly seen in patients with chronic obstructive pulmonary disease, asthma complicated by emphysema, pulmonary heart disease, and chronic respiratory failure, which are mostly based on “deficiency of lung and kidney”. The clinical application of the use of rehmannia and astragalus is particularly important; long-term clinical observation, rehmannia is considered to have the ability to nourish the kidney and fill the essence, but also to eliminate phlegm and eliminate qi, reduce rebellion and calm asthma. It is a sweet and mildly warm product that belongs to the liver and kidney meridians. It is used to nourish the blood and nourish the yin, fill the marrow, and treat the deficiency of yin and essence of the kidney. The herb “Feng Yuan” cloud: “Shu Di Huang, false fire steam, turn bitter to sweet, for the yin in the yang also, so can replenish the kidney in the vital energy.” The clinical application of the only large amount can be effective macro, the “New Compilation of Materia Medica” early Ming Jian “Shu Di to yin medicine, especially with other yin medicine is different, not more use of the Xi to win. Cover the Yin medicine and Yang medicine, with the real difference. The Yang medicine, can be used less to achieve success, while the Yin medicine, must be more to take effect. Yang is the main ascender and yin is the main descender. Yang rise, less use of Yang medicine and easy to rise. Yin down, less use of yin medicine and taste difficult to reach down.” Clinical application is often from 30g, according to 40-60g, 70g-90g, 90-110g, 120g-150g, 130g-160g in weekly increments until good effect of asthma and phlegm, and even heavy use to more than 200g, no obvious adverse reactions. Astragalus, sweet and slightly warm, belongs to the spleen and lung meridians, has the effect of “benefiting Qi and fixing the surface, promoting water retention and eliminating swelling”, which is often used clinically to prevent recurrent attacks of asthma and achieve remarkable results; moreover, it is used to prevent recurrent attacks of asthma by its function of “promoting water retention and eliminating swelling”. “function, prevention and treatment with heart Qi, heart Yang exhaustion, water Qi over the heart and other serious complications, also achieved better results. Astragalus is often added and reduced according to the evidence, according to 30-60g, 70-100g, 110g-140g, 150g-180g, 190-220g, 230g-260g, six levels gradually increase the dose of Astragalus, often to achieve good results. In addition, according to the principle of “the kidney is the main nourisher of qi” and Yu Jiayan’s theory of “animal and fish in the middle”, clinical use of heavy sedative nourishing products, such as purple quartz, spirit magnet, etc., such drugs have the effect of warming the kidney and nourishing qi. In addition, for patients with severe deficiency of essence, products of “blood and flesh with emotion” are often used to tonify the kidney essence, such as Zi He Che and Kan Navel are often used clinically. [1] Deficiency asthma is based on “deficiency of the lungs and kidneys”, and treatment is mostly based on nourishing, greasy, and heavy sedative products, which can cause dullness and lack of transportation and damage the transportation and transformation function of the spleen and stomach, thus affecting the therapeutic effect. Just like the military’s pay road. When the payroll is cut off, all the people will be scattered; when the stomach is defeated, it is difficult to administer a hundred medicines. A body, must be funded by the grain. Valley into the stomach, sprinkled in the six internal organs of the gas to, and regulate in the five viscera is blood, and people are funded for life.” I always check the presence or absence of gastric energy in the clinic, and always take care of the spleen and stomach, which is the key to treatment. For those with incomplete spleen and stomach function, the treatment first focuses on regulating the spleen and helping to transport it, with the formula based on Six Gentlemen’s Tonic and Tonic Zhong Yi Qi Tang plus or minus, and when the spleen and stomach function is restored, then add products that benefit the lungs and kidneys as appropriate, at this time the dosage of Shu Di is mostly smaller, and with Sha Ren to monitor its nourishing and greasy nature, and more Shan Yao and Hovenia pill to help the spleen and stomach, all with careful care. For people with normal spleen and stomach functions, clinical use of lung and kidney tonic products are also often combined with Hovenia pill, Curcuma with yam and grain malt, etc. Hovenia shell with Atractylodes can help the spleen without congestion; yam with Curcuma can break the qi without hurting the positive. In addition, the clinical use of yam is appreciated because it is considered to be sweet and not nourishing, and it is a flat tonic for the three organs of the lung, spleen and kidney, which is particularly suitable for deficiency asthma. 3. Be careful to check between the very, between the parallel, very alone. Although deficiency asthma is based on “deficiency of lung and kidney”, but clinical acute attacks are often accompanied by “phlegm, phlegm-heat, qi stagnation, blood stasis, water-damp” and other pathological factors as the standard, so in the clinical treatment process to take into account the problem of the standard evidence, as “Nei Jing” cloud. “If you know the symptoms, you can do everything; if you don’t know the symptoms, you are delusional.” In clinical practice, the principle of “treating the symptoms in an urgent manner and treating the root of the disease in a slow manner” has been adopted. If it is a combination of Qi stagnation, add Hou Pu, apricot; if it is a combination of blood stasis, add Chien Jin Reed Stem Soup and reduce, and if it is heavy, add Peach Kernel Cheng Qi Tang and Dangdang Tang; if it is a combination of water-dampness, if the Qi is deficient and the water stops, add Fang Ji Huang Qi Tang; if the Yang is deficient and the water stops, add Zhen Wu Tang, which is also different. Clinically, they are often mixed with each other, and should be treated in a comprehensive manner. However, for some urgent cases of symptoms, such as “fullness in the middle”, “small and large unfavorable”, often the “Nei Jing”: “first heat and then fullness in the middle is treated as a symptom. The first disease and then the drainage to treat the root; first drainage and then other diseases to treat the root, must also regulate it, then treat other diseases. The first sickness and then fullness is treated as a symptom; the first fullness and then annoyance is treated as a symptom. People have polite, there is the same gas. The size of the unfavorable treatment of its symptoms; small benefit to treat its essence. The purpose of the “Inner Mongolia”. The first treatment of its symptoms, this “Nei Jing” so-called “very alone” also. In the case of fullness, the treatment is based on the management of Qi to remove distension, the formula is based on the addition and subtraction of Qianjin Haqi Tang, the main “chest, abdomen and back closed full, upper gas and panting”. For those who do not feel good about urination, it is often caused by “deficiency of kidney qi and unfavorable bladder gasification”, and the formula is based on Zhi Kidney Tong Guan Wan with addition and reduction; for those who do not feel good about stool, it is often used as a treatment for the internal organs, and the formula is based on Cheng Qi Tang with addition and reduction. However, clinical application, often need to take into account the original deficiency, so the use of drugs more first calm and ineffective, gradually aggravated. In the use of rhubarb dosage more gradual, taking into account the spleen and stomach, more from 5g. After the standard emergency is relieved, then carry out the treatment for deficiency. Case example Lin, male, 77 years old, initial diagnosis on September 10, 2014: the patient came to the clinic with “recurrent cough and asthma for more than 10 years, aggravated with fever for 4 days”, body temperature measured at the time of consultation: 38.0℃, at the time of consultation: the patient had fever and chills, bitter mouth and dry throat, slightly nausea and vomiting, coughing, small amount of yellowish white mucous sputum, chest tightness He reported that his bowels had been dry for 5 days, and his abdomen was distended after eating, and he thought it was bitter, with a red tongue, thin yellow greasy moss, and smooth pulse. According to the evidence: evil offending Shaoyang, phlegm-heat, intestinal paralysis, internal organs, lung and kidney deficiency. “The first treatment is to reconcile Shaoyang, ventilate heat from the internal organs, and purge the lungs and calm asthma. The formula is based on Xiao Chai Hu Tang, Xuan Bai Cheng Qi Tang and Qian Jin Wei Zhi Tang with addition and subtraction. The specific herbs are as follows: Radix Codonopsis Pilosulae 30g, Radix Scutellariae 10g, Radix Praeparatae 10g, Radix Bupleurum Chinense 15g, Radix Psidium Guajava 20g, Radix Rhubarb 10g, Radix Almond 10g, Radix Pseudostellariae 10g, Citrus Aurantium 10g, Radix Su Zi 10g, Radix Winter Melon 15g, Semen Coix 20g, Radix Rehmanniae 30g, (3) doses, decoction in the usual way. On September 13, 2014, at the second consultation, the patient complained that after taking the medicine, the sweating and fever had subsided, the body fever had subsided, the cough and asthma, abdominal distension had slightly subsided, but the bowel movement was still not smooth, the tongue was red, the moss was thin and yellowish, and the pulse was stringent and slippery. The original formula removed Scutellaria baicalensis, Radix Bupleurum, Radix Bupleurum and Radix Codonopsis pilosulae, and added Cistanche cistannii 20g, Shengma 6g, and Hibiscus esculentus 15g.(2) doses, decoction in the usual way. On September 15, 2014, the third consultation, the patient complained that the stool had been passed and the abdominal distension had been relieved. Now the patient has occasional coughing, coughing up a small amount of white mucous sputum, chest tightness and shortness of breath, which is worse when moving, body tiredness and weakness, poor food and appetite, light red tongue, thin white fur, and thin pulse. At this time, the symptoms have been removed, but the deficiency is obvious. According to the evidence, Shi concluded that the lung and kidney are deficient and the spleen is not healthy, Herba Cistanches 15g, Radix Bupleurum 10g, Rhizoma Yam 60g, Cornu Cervi Pantotrichum 15g, Rhizoma Curcuma 10g, Fried Crataegus 10g each, 7 doses, decoction in the usual way. On September 22, 2014, the patient complained that his cough and asthma were significantly reduced, his food and appetite became fragrant, his bowel movements were still regulated, his tongue was light red, his fur was thin and white, and his pulse was thin. The original formula was modified by removing Cistanches, adding 60g of Radix Rehmanniae, and increasing the amount of raw Astragalus to 60g. 7 doses were taken with the usual decoction. The patient has been coughing and wheezing repeatedly for more than 10 years, and the wheezing is very bad when he moves, which is undoubtedly “deficiency wheezing”, but this time the patient has an acute attack of wheezing, which is combined with the standard real, and this should be noted. A diagnosis: the patient has fever and vicious cold, bitter mouth and dry throat, slightly nausea and vomiting, combined with the “Treatise on Typhoid”: “Shaoyang as a disease, bitter mouth and dry throat, dizziness”, “Shaoyang disease, hot and cold, heartburn and vomiting, chest and bitter fullness, silent desire not to eat” and The evidence belongs to “the evil offends Shaoyang, and the cardinal organs are unfavorable”, according to “The Golden Horoscope”: “If a chronic illness is combined with a stroke, the stroke should be treated first, and then the chronic illness should be treated. “The patient coughs and vomits yellowish white sticky sputum, with yellowish greasy tongue coating and slippery pulse, which is the sign of phlegm-heat in the lung; abdominal distension, closed stool, intestinal paralysis and internal organs are all obvious. The evidence should be: phlegm-heat is contained within the lung, and the bowel paralysis and internal organs are real. The treatment of the symptoms is based on the meaning of “the fullness in the middle” and “small and large unfavorable”, and the first treatment is to vent heat from the internal organs, purge the lungs and calm asthma. The formula is based on the meaning of Xuan Bai Cheng Qi from the “Treatments of Warm Diseases”, which is to promote the flow of lung qi and to smooth the internal qi; moreover, Qian Jin Wei Zhi Tang is to clear the lung and resolve phlegm. The second consultation: the patient’s body heat has subsided, so remove Xiao Chai Hu Tang, but the patient’s internal Qi is still not smooth, combined with the patient’s old age and frailty, Zong Ji Chuan decoction of the intention, add Cistanches, Sheng Ma; especially good to add Sheng Ma to ascend the clear and lower the turbidity, clear Qi ascending, turbidity will be lowered. In addition, he added fire hemp nut to laxative, in addition to soursop with fire hemp nut, is Xu bachelor soursop hemp nut porridge, the treatment of elderly people deficiency and constipation has a miraculous effect. At the third consultation, the patient’s internal qi had been cleared, the symptoms had been removed, and the original deficiency had been revealed. At this time, the main focus was on tonicity, but the patient’s food and nourishment were poor, and the spleen was not healthy, so it was difficult to add drugs such as rehmannia, etc. Therefore, with the idea of protecting the spleen and stomach, we chose Sheng Wei Du Qi Wan to remove rehmannia to calmly tonic the lungs and kidneys, and added Tonic Zhong Yi Qi Tang to tonic the spleen and stomach, so as to protect the essence of the latter and lay the foundation for further treatment. At the fourth consultation, the patient’s food and nourishment gradually opened up, and the spleen and stomach gradually restored their functions of transportation and digestion. At this time, we focused on tonifying the lung and kidney, so we added 30g of Shu Di to tonify the kidney and nourish the qi, and increased Huang Qi to 50g to “tonify the lung and guard”, in order to prevent recurrent attacks of deficiency asthma. In this case, the patient’s condition is complex, the symptoms are slow and complicated, but after these four consultations, the cough and asthma were significantly reduced, which shows that the diagnosis and treatment are colorful.