The clinical manifestation of coughing when one breath comes up is mainly due to airway hyperresponsiveness. Allergen testing, pulmonary function and bronchodilator tests can be improved, and if the patient is diagnosed with cough variant asthma, systematic treatment is needed. Firstly, according to allergens, avoid contact with allergy-prone substances. Clinically, animal fur and pollen are easily allergic and should be avoided, and secondly, oral leukotriene modulators such as montelukast are available. Because the essence of cough variant asthma is airway hyperresponsiveness, it is necessary to inhale glucocorticoids, which are commonly used clinically, including Xymbicort or Sulindac. If the patient has decreased immune function, oral pidomod and transfer factor can be taken to improve the immunity of the patient.