治上气喘嗽。
紫菀 五味子 橘红 甘草 紫苏子 否仁 桑白皮 半夏 枳壳 生姜（五片） 紫
苏（五叶） 水煎。
治肺虚感寒，气逆膈热，而作哮喘。
白果（二十一枚，去壳，切碎，炒黄色）
麻黄 半夏（姜制） 款冬花（各三钱） 桑白皮（蜜炙） 苏子（各二钱） 杏仁（去皮、
尖） 黄芩（一钱五分） 甘草（一钱） 水三钟，煎二钟，分二服，不用姜，不拘时徐徐服。
括曰∶诸病原来有药方，惟愁哮喘最难当，麻黄桑合加苏子，白果冬花效更良，甘
草黄芩同半夏、水煎热服不须姜，病患得此真仙药，服后方知定喘汤。
此手太阴药也。表寒宜散，麻黄、杏仁、桑皮、甘草，辛甘发散，泻肺而解表；
里虚宜敛，款冬温润，白果收涩，定喘而清金，苏子降肺气，黄芩清肺热，半夏燥湿
痰，相助为理，以成散寒疏壅之功也。
夫人一身之气，全关于肺，肺清则气行，肺浊则气壅，肺热则津不得，而肌肉甲
错，多生肺痈。痈者，壅也。肺气郁热，久壅而成也。盖咳久伤肺，元气渐虚，其人有
寒热往来，自汗 ，口中有浊唾涎沫，或咳嗽唾中有红线脓血，或多唾涎沫而无脓，
寸口脉数而虚涩，或虚洪者，名曰肺痿，热在上焦故也。如口中辟辟燥咳，即胸中隐隐
痛，咽燥喘渴，四肢微肿，先吐血而后吐脓，胸中甲错，（甲错，肌不滑泽也）。或偏
热烙手，喜一侧于右睡，而不能左卧，左疼则喘急不安，其痰似脓血腥臭，以水验之则
沉而不浮，其脉数而有力者，名曰肺痈，因劳伤血气，腠理开而受邪，寒搏于血，蕴结
成痈，结热不散，败血为脓，咳伤肺叶而成，按其右胁必痛皆是也。若已破入风者，
不治。吐脓如米粥者，难治。然痿为正气虚，痈为邪气实，其肺痿治法在乎养血养神
养气清金，而治肺痈在于补养气血，而兼排脓也。然肺痿亦有寒者，必头眩吐涎沫而不
咳不渴而遗尿，此为肺中冷而心中有湿液也。古人用炙甘草、干姜治之，以补虚劳
也。古一妇人，二十余岁，胸膺间一窍，口中所咳脓血，与窍相应而出，以人参、黄
、当归补气血之剂，加退热排脓等药而愈。肺痿咳吐咽燥，欲饮水者，自愈。张口矩气者，危。
治疗上气喘促、咳嗽。
紫菀、五味子、橘红、甘草、紫苏子、杏仁、桑白皮、半夏、枳壳、生姜（五片）、紫苏（五叶），用水煎煮服用。
治疗肺虚感受寒邪，气机上逆导致膈部发热，从而引发哮喘。
白果（二十一枚，去壳，切碎，炒至黄色）
麻黄、半夏（姜制）、款冬花（各三钱）、桑白皮（蜜炙）、苏子（各二钱）、杏仁（去皮、尖）、黄芩（一钱五分）、甘草（一钱）。水三钟，煎取二钟，分两次服用，不用生姜，不拘泥于具体时间，慢慢服用。
总结说：各种疾病原本都有药方，唯独担心哮喘最难对付，麻黄与桑白皮配合加上苏子，白果和款冬花的疗效更好，甘草、黄芩同半夏一起，用水煎煮热服不需要生姜，病人得到这真是仙药，服用之后才知道这是定喘汤。
这是手太阴肺经的药物。表寒适宜发散，用麻黄、杏仁、桑白皮、甘草，辛甘发散，泻肺而解表；里虚适宜收敛，款冬温润，白果收涩，定喘而清肃肺气，苏子降肺气，黄芩清肺热，半夏燥湿痰，相互辅助调理，以达成散寒疏通壅滞的功效。
人的全身之气，全由肺所主管，肺清则气机运行通畅，肺浊则气机壅塞，肺热则津液受损，导致肌肉粗糙如鳞甲交错，容易生肺痈。痈，就是壅滞的意思。肺气郁结化热，久滞而成。大概咳嗽日久损伤肺脏，元气逐渐虚弱，病人有寒热往来，自汗出，口中有浑浊的唾沫涎液，或者咳嗽吐出的痰中带红线脓血，或者多吐涎沫而没有脓，寸口脉象数而虚涩，或虚洪的，名叫肺痿，这是因为热在上焦的缘故。如果口中干燥，咳嗽时胸中隐隐作痛，咽干气喘口渴，四肢轻微肿胀，先吐血而后吐脓，胸中皮肤粗糙如鳞甲交错，（甲错，指肌肤不光滑润泽）。或者身体一侧感觉灼热烫手，喜欢向右侧睡，而不能向左卧，左侧疼痛则喘急不安，其痰像脓一样腥臭，用水验证则下沉而不漂浮，其脉象数而有力的，名叫肺痈，因为劳伤气血，腠理开泄而受邪气侵袭，寒气搏结于血中，蕴结形成痈肿，结热不散，败血化为脓，咳嗽损伤肺叶而成，按压右胁必定疼痛都是这种情况。如果已经破溃进入风邪的，无法治愈。吐脓像米粥一样的，难治。然而肺痿是正气虚，肺痈是邪气实，治疗肺痿的方法在于养血、养神、养气、清金（清肺），而治疗肺痈在于补养气血，并且兼用排脓之法。然而肺痿也有寒证，一定是头晕目眩、吐涎沫而不咳嗽、不口渴且遗尿，这是肺中寒冷而心中有湿液所致。古人用炙甘草、干姜治疗它，用来补益虚劳。古代有一位妇人，二十多岁，胸膺间有一个孔窍，口中咳出的脓血与该孔窍相应而出，用人参、黄芪、当归等补气血的药剂，加入退热排脓等药物而痊愈。肺痿咳嗽吐痰、咽干，想要喝水的，会自愈。张口短气的，危险。
Treats upper jiao asthma with panting and cough.
*Zi Wan* (Asteris Radix), *Wu Wei Zi* (Schisandrae Fructus), *Ju Hong* (Citri Reticulatae Pericarpium Rubrum), *Gan Cao* (Glycyrrhizae Radix et Rhizoma), *Zi Su Zi* (Perillae Fructus), *Xing Ren* (Armeniacae Semen Amarum), *Sang Bai Pi* (Mori Cortex), *Ban Xia* (Pinelliae Tuber), *Zhi Ke* (Aurantii Fructus Immaturus), *Sheng Jiang* (Zingiberis Rhizoma Recens, five slices), *Zi Su* (Perillae Folium, five leaves). Decoct in water and take.
Treats asthma caused by lung deficiency with cold invasion, rebellious qi, and heat in the diaphragm.
*Bai Guo* (Ginkgonis Semen, 21 pieces, shelled, chopped, stir-fried until yellow)
*Mao Huang* (Ephedrae Herba), *Ban Xia* (Pinelliae Tuber, prepared with ginger), *Kuan Dong Hua* (Farfarae Flos, each 3 qian), *Sang Bai Pi* (Mori Cortex, honey-fried), *Su Zi* (Perillae Fructus, each 2 qian), *Xing Ren* (Armeniacae Semen Amarum, peeled and tips removed), *Huang Qin* (Scutellariae Radix, 1.5 qian), *Gan Cao* (Glycyrrhizae Radix et Rhizoma, 1 qian). Use three zhong of water, decoct to obtain two zhong, divide into two doses. Do not use ginger. Take slowly at any time without restriction.
Summary: Various diseases originally have prescriptions, but only asthma is feared as most difficult to manage. Ephedra combined with Mulberry Bark plus Perilla Fruit; Ginkgo and Farfara Flower offer even better efficacy. Licorice, Scutellaria Root together with Pinellia Tuber, decocted in water and taken hot without ginger; patients receiving this truly immortal medicine will know it is Ding Chuan Tang (Calm Asthma Decoction) after taking it.
This belongs to the Hand Taiyin Lung Meridian. Exterior cold should be dispersed; Ephedra, Apricot Seed, Mulberry Bark, and Licorice are pungent and sweet, promoting dispersion, draining the lung, and releasing the exterior. Interior deficiency should be astringed; Farfara Flower is warm and moistening, Ginkgo Seed is astringent, calming asthma and clearing the metal (lung); Perilla Fruit descends lung qi, Scutellaria Root clears lung heat, Pinellia Tuber dries damp-phlegm. They assist each other to achieve the effect of dispersing cold and unblocking congestion.
The qi of the entire human body is entirely related to the lung. If the lung is clear, qi flows smoothly; if the lung is turbid, qi becomes obstructed. If the lung has heat, fluids are damaged, leading to rough, scaly skin (jiacuo), and often results in Lung Abscess (Fei Yong). "Yong" means obstruction. It is formed by long-term stagnation of lung qi郁结 transforming into heat. Generally, chronic cough damages the lung, causing yuan qi (primordial qi) to gradually weaken. The patient experiences alternating chills and fever, spontaneous sweating, turbid saliva and phlegm in the mouth, or coughing up sputum containing red lines of pus and blood, or spitting much saliva and phlegm without pus. The pulse at the cunkou position is rapid and deficient/rough, or deficient and flooding. This is named Lung Withering (Fei Wei), due to heat in the upper jiao. If the mouth feels dry ("pipi zao"), coughing causes faint pain in the chest, throat dryness, asthma, thirst, slight swelling of the four limbs, first hemoptysis followed by expectoration of pus, rough skin on the chest (jiacuo refers to skin that is not smooth and lustrous), or one side of the body feeling burning hot, preferring to sleep on the right side and unable to lie on the left, left-sided pain causing urgent asthma and restlessness, sputum resembling pus with a bloody and foul odor, which sinks rather than floats when tested with water, and a rapid and forceful pulse, this is named Lung Abscess (Fei Yong). It is caused by labor injuring blood and qi, opening the couli (pores) to receive pathogenic factors. Cold contending with blood leads to accumulation forming an abscess. Unresolved accumulated heat turns defeated blood into pus, damaging lung lobes through coughing. Pressing the right hypochondrium causes pain in all such cases. If it has already ruptured and wind enters, it is incurable. Expectorating pus like rice porridge is difficult to treat. However, Fei Wei is characterized by deficiency of righteous qi, while Fei Yong is characterized by excess of pathogenic qi. The treatment method for Fei Wei lies in nourishing blood, spirit, and qi, and clearing the metal (lung). The treatment for Fei Yong lies in tonifying and nourishing blood and qi, while simultaneously employing methods to expel pus. However, Fei Wei can also have cold patterns, characterized by vertigo, spitting saliva and phlegm, no cough, no thirst, and urinary incontinence. This is due to cold in the lung and damp fluid in the heart. Ancients used Roasted Licorice and Dried Ginger to treat it, to tonify deficiency and fatigue. An ancient woman, over twenty years old, had a hole between her chest and diaphragm, from which pus and blood coughed up from the mouth emerged correspondingly. She was cured using formulas tonifying qi and blood such as Ginseng, Astragalus, and Angelica Sinensis, added with herbs for reducing heat and expelling pus. In Fei Wei with coughing, expectoration, throat dryness, and desire to drink water, self-healing occurs. Open-mouthed shortness of breath indicates critical condition.