Pulmonary fibrosis is not clinically treated with specific drugs, and lung transplantation is the most effective treatment for specific pulmonary fibrosis. Symptomatic treatment is usually given clinically. When coughing with phlegm, expectorant drugs such as bromohexine hydrochloride, aminoglutethimide hydrochloride, acetylcysteine, etc. can be used. Oral Chinese medicines, such as syrup, honey-refined Chuanbei loquat extract, and powerful loquat extract, can also be taken to clear heat and resolve phlegm. The treatment plan and treatment measures need to be adjusted in time to help patients reduce pain and improve quality of life. At the same time, we can take Chinese herbal soup, through the four diagnoses of looking, smelling, asking and cutting, and analyze the evidence, and give symptomatic treatment of tonifying Qi, benefiting the lung, relieving cough and resolving phlegm.