Children’s cough can be seen in the dry environment, respiratory tract infections or cough variant asthma and other conditions, can be relieved by changing the environmental triggers, medication and so on. 1. Dry environment and other factors: when the child’s living environment is too dry, it will cause the child to cough, at this time the cough is usually mild, no progressive aggravation, parents can use air humidifier and other adjustments to the indoor temperature and humidity, the child’s cough symptoms can be improved. 2. Respiratory tract infections: these are a common cause of coughs. Viral infections usually do not require special treatment with antiviral drugs. If there is a viral infection, there is no need to use special antiviral drugs. If there is a bacterial infection, antibacterial drugs such as cefixime and amoxicillin should be used in accordance with the doctor. If the child’s cough is so severe that it seriously affects daily life or sleep, cough suppressants such as dextromethorphan and pentoxyverine citrate can be used as prescribed by the doctor. 3. Cough variant asthma: these children often have increased airway responsiveness, recurrent cough, often dry cough, the treatment requires the use of inhaled glucocorticosteroids (such as budesonide) for nebulization, the use of short-acting β₂ agonists (such as salbutamol, terbutaline) oral leukotriene receptor antagonist (such as montelukast) treatment. All of the above medications should be used under the supervision of a physician, and avoid self-medication; there are many other causes of cough in children, and it is recommended to consult a specialist to identify and treat the cause.