Asthma, which is still common in the outpatient department of respiratory medicine, is a disease of respiratory medicine. Asthma is a common disease in respiratory medicine clinics. It usually presents paroxysmal cough, chest tightness and wheezing. In addition, there are some special types of asthma that may only show simple cough symptoms, which is also called cough variant asthma. For asthma, this disease can be treated in the outpatient department in most cases, and it often requires standardized inhalation of glucocorticoids and bronchodilators for treatment. We also need to go to the hospital repeatedly to assess the patient's condition and adjust the treatment plan; Attention should also be paid to avoid inhalation of allergens and prevent repeated respiratory tract infections, which are conducive to asthma control. In addition, when asthma has an acute attack, if the condition is serious, it is also necessary to go to the emergency department, and may also need hospitalization.