Allergic cough is a relatively common allergic respiratory disease, the etiology of which may be cough variant asthma, non-asthmatic eosinophilic bronchitis, allergic cough, allergic rhinitis, post-infectious cough, etc. Its incidence is increasing with the current increasing environmental pollution. The disease is characterized by a long and recurrent course, which seriously affects the work and life of patients. There are various causes of allergic cough: firstly, genetic factors. Cough variant asthma usually occurs in people with allergic constitution, which is genetically related and usually due to heredity. In addition, cold air, changes in air temperature and air pressure are the main causes of allergic cough. In recent years, with the development of industry, the problem of environmental pollution has become increasingly serious, changing the constitution of many people, making the original non-allergic body into an allergic body and increasing allergens. Some foods can also cause allergies, such as seafood, high-calorie, raw, cold and greasy foods, which increase the stimulation of the respiratory system. In addition, exposure to environmental allergens such as pollen, dust, animal fur, mites, irritating odors, harmful gases in the air, various chemical insecticides, incense smoke, oil smoke, and soot can trigger allergic cough. To reduce the recurrence rate of allergic cough, it is important not only to keep patients away from allergens, but also to strengthen their immunity by appropriate physical exercise.