For patients with respiratory illnesses accompanied by dyspnoea, coughing and breathlessness, it is recommended to register with the Department of Respiratory Medicine; secondly, it is also necessary to consider the patient’s medical history and what symptoms he or she has manifested, etc. Like some patients who have underlying diseases themselves, such as hypertension, diabetes, systemic lupus erythematosus, etc., in this case, it is necessary to combine the patient’s own signs, and recent onset, etc., and choose the corresponding department for consultation, such as Cardiovascular Medicine, Rheumatology and Immunology, so as not to delay the disease.