Coughing is one of the most common symptoms of respiratory diseases in children, and pediatric clinics are full of coughing children every day. Normally, coughing is a protective physiological phenomenon in babies, an organism’s defensive reflex action to expel respiratory secretions or foreign bodies. Some children who cough all the time in the morning are aware that they may have an allergic cough. Allergic coughs tend to intensify at night or in the morning with an irritating cough, or with symptoms of allergic rhinitis, conjunctivitis, such as sneezing, runny nose, itchy nose, itchy eyes, or with eczema. The cough is obvious during the change of seasons and sudden changes in temperature, and recurring episodes are difficult to cure with changes in climate, environment and living habits. This means that the child is allergic. There is evidence of allergy supported by such things as elevated eosinophils and elevated IgE in the blood; antibiotic treatment is ineffective, while application of glucocorticoids, anti-allergy medications, and beta2 agonists provide relief. Allergic cough can recur. First of all, avoid contact with allergens, foods that cause allergic symptoms, such as seafood, cold drinks and spices, do not keep pets and flowers at home, do not lay carpets, etc. Do not let your child sleep with a long fluffy toy, and dry the bed frequently. Adhere to a systematic and standardized course of treatment, apply inhaled glucocorticoids, leukotriene receptor antagonists, antihistamines, etc., and follow up regularly.