The best time to cure allergic cough in children is when the disease is diagnosed early and should be treated as soon as possible. Allergic cough in children, also known as allergic cough, is a chronic dry cough lasting ≥8 weeks and is one of the common pediatric respiratory diseases. It often occurs during the alternation of hot and cold or seasonal changes, or in spring when there is more pollen, with paroxysmal, intense coughing and thin, white, foam-like sputum. Allergic cough in children is a relatively serious type of a series of allergic diseases, and prolonged allergic cough can easily lead to allergic asthma, wheezing bronchitis, pneumonia, etc. Therefore, it is important to identify the allergen and actively treat it as early as possible while making a clear diagnosis as early as possible. In addition, children with allergic cough should avoid contact with allergens and remove various factors that may trigger the disease, such as catching cold, flu, pollen, smoke, paint, cold air, etc. Avoid eating stimulating foods that are too cold, too sweet, too salty, too spicy, etc. in daily life. At the same time, parents should put on a mask for their children before taking them out in spring to reduce the irritation of cold air on the airway.