Bronchitis is called external cough in Chinese medicine, and it can be treated with traditional Chinese medicine to reduce the symptoms and improve the quality of life, but it cannot be completely eradicated. The most common forms of external cough are phlegm and turbidity, which can be treated with Er Chen Wan (二陈丸), the main ingredients of which are 半夏 (半夏),甘草 (甘草), 陳皮 (陈皮) and fu ling (茯苓). For phlegm-heat congestion of the lungs, you can also use Qing Jin Hua Phlegm Tang, the main ingredients of which are Sang Pi, Zhi Mu, Poria, Maimendong, Scutellaria baicalensis, Bei Mu, Gardenia, Gua Puzuoren, Tangerine red, Platycodonopsis, and Glycyrrhiza glabra, which has the efficacy of purging the lungs and resolving phlegm (clearing away lung-heat and dissolving phlegm-evil), and it is the main cure for coughs. In addition to traditional Chinese medicine to regulate the wind-cold offending lungs, in ordinary life in the auxiliary means is indispensable, such as strengthening physical exercise to enhance the ability to resist disease, avoid colds, quit smoking and alcohol. If there is any discomfort, it is recommended to consult a doctor in time.