Small airway dysfunction is a sign of minor lesions in the small airways or a slight decrease in lung elasticity. It is common in high-risk patients with chronic obstructive pulmonary disease (COPD) and bronchial asthma during the remission period, as well as in the elderly and long-term smokers, and is characterized by chest tightness, shortness of breath, wheezing, coughing and other uncomfortable symptoms, which can fall into the category of wheezing in Chinese medicine according to the symptoms. According to the different manifestations of patients with asthma, the symptoms can be divided into two aspects, namely evil and positive. 1. Evil real includes wind-cold offenders of the lungs, the treatment of which is combined with Ma Huang Tang and Hua Gai San; surface cold and lung heat, the treatment of which is combined with Ma Xing Shi Gan Tang; phlegm-heat depressing the lungs, the treatment of which is combined with Sang Bai Pei Tang; phlegm and turbidity blocking the lungs (obscurant phlegmatic evils obstructing the function of the lungs), the treatment of which is combined with Er Chen Tang and San Zi Nourishing Relatives Soup; the treatment of which is combined with Liver Qi multiplying the lungs, the treatment of which is combined with Wu Mu Drink; the treatment of which is combined with Drabanemerosa hebecarpa and Jujube Diarrheal Lung Soup; and the treatment of which is combined with Zhen Wu Tang and Drabanemerpa jujube Diarrhea Lung Soup. 2. Positive deficiencies include lung deficiencies, treated with Shengmusan and Lung Replenishing Soup; kidney deficiencies, treated with Jin Gui Kidney Qi Pill and Ginseng Clam Pill; and wheezing deficiencies, treated with Ginseng and Forsythia Soup with Hei Xidan. After the discomfort occurs, you should consult a doctor in time, and choose the medication under the guidance of the physician’s diagnosis, not self-medication, so as not to delay the condition.