Cough is an important symptom that accompanies many lung diseases, such as chronic obstructive pulmonary disease, cough variant asthma, acute and chronic bronchitis, and lung infections. In Chinese medicine, cough is both a symptom and an independent disease, and the cause of cough can involve the five internal organs. Chronic pulmonary diseases are most common in elderly patients and do not resolve over the years, and if they are not properly managed, they become progressively worse. The treatment of chronic cough is described in detail in the chapter on cough in the Clinical Guide to Medicine. Prolonged coughing injures qi and yin, resulting in deficiency of both qi and yin. Treatment is based on tonifying Qi and Yin. In most cases, this involves deficiency of both Qi and Yin in the lung and stomach, and can be treated by nourishing Yin and benefiting Qi as described in the Jin Kui Yao. Older patients mostly have kidney yin deficiency, so they can be supplemented with the method of filling kidney yin, taking the meaning of gold and water. The medicine is mainly sweet-cool or sweet-cold, avoiding pungent, bitter and dry products. In filling the essence of the kidney, nourishing the yin and generating fluid, while not forgetting to benefit the qi and strengthen the spleen, transporting water and dampness to prevent nourishment and obstruction of the stomach, phlegm and dampness within. Ye Tianshi’s favorite drugs to benefit the spleen are poria, lotus seed meat. Qi deficiency is more common in lung and spleen deficiency, with Huangqi Jianzhong Tang and Sijunzi Tang as the method, taking the meaning of cultivating earth and generating gold. The taste of the medicine is mainly sweet and warm. In his treatment, he never forgets to protect stomach qi, so that if one point of stomach qi is retained, one point of vitality will be achieved. Ye attached great importance to the therapeutic effect of the taste of the medicine on the disease, and cautioned the use of pungent, bitter and dry products, also suggesting that patients should pay attention to less pungent and dry products in their diet to avoid dissipating lung qi. It also suggests that patients should take less spicy and dry products in their diet to avoid depleting the lung energy. In the text, many medicines of the same origin are used, such as pear skin, pear juice, mung bean coat, black bean coat, chicken seed white, and white lentil, while the formula for nourishing yin mostly uses sugar cane pulp or japonica rice soup as the solvents for decoction to enhance the power of nourishing yin, and the use of poultices is also common. The clinical testimony is not one end of the spectrum, and there is a mixture of deficiency and reality. In terms of the time of taking the drugs, Ye advocates taking the products to support the righteousness in the morning and the agents to dispel the evil in the evening. In the article, there is also a party that can be used for dietary therapy: cow’s milk, purple-coated walnut, raw white honey, ginger juice, to treat autumn dryness, kidney fluid does not bear, cough Yin deficiency, dry stools, small pulse. In addition, in addition to medication and diet, daily protection is also important, such as wearing a mask to prevent cold air and dust stimulation.