The cough is severe at 4:00 a.m. In the present case, the airways are considered to have varying degrees of inflammatory reaction. The most common type of cough is cough variant asthma, which is a special type of bronchial asthma. The other is an irritating, dry cough caused by bronchitis and pneumonia due to infection with Mycoplasma and Chlamydia. At this time, blood tests, CT of both lungs and lung function, and if necessary, blood-related antigens and antibodies of Mycoplasma pneumoniae and Chlamydia can be checked to clarify the diagnosis and then provide timely symptomatic and etiological treatment.