Dry cough, chest tightness and shortness of breath should be registered with the department of respiratory medicine, because many diseases in respiratory medicine can show the above symptoms, such as chronic bronchitis, chronic obstructive pulmonary disease, lung malignancy, bronchial dilatation, which can all show the above symptoms. It is recommended to go to the hospital in time to improve the CT of the lung. If the CT is considered to be infectious disease, anti-infective treatment can be taken. If tuberculosis is considered, anti-tuberculosis treatment should be standardized. If lung malignancy is considered, further examination is needed to determine the type of pathology, and different treatment methods should be adopted according to the pathology results.