Allergic cough in children is the most common respiratory disease in winter and spring. The incidence of the disease is increasing, and there is a tendency for it to develop at a younger age. Allergic cough should be considered when the child has these conditions: a dry cough that has persisted for more than 1 month and is often worse at night and/or early in the morning; a cough that occurs during hot and cold periods, seasonal changes, sweating and exercise; a recurrent, violent and paroxysmal cough; no signs of infection (no significant abnormalities in blood count, calcitoninogen, C-reactive protein) and may be accompanied by eosinophilic granulocyte elevation. Antibiotic treatment for a longer period of time is ineffective. Treatment requires anti-inflammatory, anti-allergic, wheezing and cough suppression as the therapeutic principles to manage airway hyperresponsiveness. Under the guidance of the doctor, the following treatments can be considered: 1) Cetirizine oral solution / loratadine can be given to the child to combat allergies, find allergens and try to avoid them. 2. Oral leukotriene receptor antagonists, commonly known as montelukast sodium, to reduce airway hyperreactivity. 3.Orally take cough and phlegm relieving drugs, you can choose western drugs (such as aminoglutethimide oral solution), together with Chinese medicine (pediatric lung cough granules). 4.Oral antibiotics can be considered when combined with bacterial infection, you can choose azithromycin, or erythromycin orally. 5. Budesonide can be used, together with terbutaline and other drugs for nebulization treatment. When the seasons change and the temperature changes suddenly, pay attention to keeping warm, avoid getting cold and flu, avoid allergens, and take preventive oral cetirizine and montelukast sodium. Prevent colds, aerobic exercise, and strengthen the body.