Many children have coughing symptoms, and even after taking various cough suppressants, anti-inflammatory drugs or nebulizer treatment, they cough repeatedly, which worries parents and seriously affects the physical and mental health of the child, and also causes great distress and financial burden to parents. In fact, by identifying the cause and prescribing the right medicine, the child’s cough will be successfully controlled. Coughing is one of the most common symptoms of respiratory diseases in children, and in general, it is a protective physiological phenomenon in babies, a reflex action of the body’s defense in order to expel respiratory secretions or foreign bodies. coughing within 2 weeks is an acute cough, and the main causes of coughing are cold, tonsillitis, laryngitis, bronchitis and pneumonia. The majority of coughs in infants and children are due to viral infections and there is no need for antibiotics; expectoration is the key. A cough of more than 4 weeks is diagnosed as chronic cough. Common causes are cough variant asthma, upper airway cough syndrome, respiratory tract infection and post-infectious cough, gastroesophageal reflux, and cardiac cough. Therefore, when a child has recurrent cough, it is important to help the child find the cause in a timely manner and treat the cause of the cough such as infection, allergy, airway spasm, environmental irritation, etc. In conclusion, if your child has a recurrent cough, especially a chronic cough, parents should not rush to apply various medications to their child, calmly analyze the possible causes, give timely feedback to the physician, and treat under his or her guidance. Pay attention to strengthening your child’s physical fitness, taking appropriate outdoor exercise, eating a balanced diet, avoiding allergens in children with allergic coughs, and going to less crowded public places during the disease epidemic season.