Zhang Lishan, Department of Respiratory Medicine, Beijing Dongzhimen Hospital: Chronic bronchitis is a common clinical condition. For the acute phase of co-infection, it can be treated with western anti-inflammatory and phlegm treatment, and if wheezing, antispasmodic and asthma drugs can be used, while the remission phase can be treated mainly with Chinese medicine to improve the patient’s symptoms, reduce the number of recurrences and improve the quality of life. Coal pneumoconiosis is an occupational disease, and many of them are interstitial lung lesions, which are relatively tricky to treat. If the infection is combined, anti-inflammatory treatment is available, and herbal treatment should help improve the symptoms, but of course the level of herbalists varies, so if you see a herbalist it is recommended to find a good herbalist for treatment.