I. How is chronic cough diagnosed? A cough that lasts longer than 8 weeks without obvious evidence of lung disease becomes a chronic cough. Coughs are usually divided into 3 categories according to their duration: acute cough, subacute cough and chronic cough. Acute cough lasts <3 weeks, subacute cough 3-8 weeks, and chronic cough ≥8 weeks. II. Causes of disease Six major causes of chronic cough are: postnasal drip syndrome, cough variant asthma, gastroesophageal reflux, eosinophilic bronchitis, chronic pharyngitis, and psychogenic cough. III. Manifestations of the disease Patients with recurrent episodes of cough lasting more than 1 month, with a predominantly dry cough; often occurring at night and/or early in the morning or aggravated by exercise; cough mostly associated with exposure to irritating odors, cold air, exposure to allergens or excessive exercise; may have a history of allergic rhinitis or other allergic diseases or family history, positive allergen test or increased IgE levels; increased airway reactivity; antibiotics or allopathic treatment is ineffective for more than 2 weeks, while anti-allergic treatment or bronchodilators are effective; chronic cough caused by other chronic respiratory diseases is excluded. The advantages of Chinese medicine treatment can alleviate symptoms, reduce the adverse effects of western medicine, improve the quality of life and prolong survival. 1. Chinese medicine treatment (1) Treatment of phlegm-heat stagnant lung: clear heat and purge the lung, expel phlegm and stop cough. (2) Treatment of phlegm-dampness in the lung: strengthening the spleen and nourishing the lung, drying dampness and resolving phlegm. (3) Treatment of phlegm reversing upward flow of phlegm and Qi: resolving phlegm and lowering reversal, promoting the lung to stop cough. 2.Acupuncture and moxibustion: choose Tiantu, Futu, Lung Yu and Taiyuan points, and the technique is based on flat tonifying and diarrhea, with small twisting. 3.Patching therapy: ephedra: pine: tooth soap = 2:1:1, boiled and concentrated into a paste, applied to the Tiandu point, 4-6 hours, once a day. Fifth, self-care First of all, pay attention to climate change, cold and warmth, diet should not be sweet, fat, spicy and salty, alcohol and smoking and other bad habits should be especially quit. Avoid irritating gas injury to the lungs, appropriate participation in physical exercise to enhance physical fitness, improve the ability to resist disease. Those who are prone to catching colds should have a facial massage at the Yingxiang point to prevent colds. For coughs with internal injuries, which are mostly chronic and recurrent, special attention should be paid to the regulation of daily life and diet.