Coughs are common in babies, but a prolonged cough that does not heal can easily bring harm to the body, so parents can help their children improve the symptoms of a prolonged cough through medication, dietary regimen and daily care. Medication: If a child has a cough that does not heal, the first thing to do is to identify the cause, such as whether there is a foreign body in the respiratory tract or allergies. After confirming the cause, parents can use medication for the cause under the guidance of a doctor, such as anti-infective medication if it is an infection, or eczema nebulizer, anti-allergy medication, and airway stabilization medication if it is an allergy. Dietary regimen: On a daily basis parents can give their children more cough and phlegm relieving foods such as luo han guo, lily of the valley, pear, etc. Having children eat these things regularly can help improve their cough and can also dissolve phlegm. However, dietary therapy will not play a fundamental role, and a normal diet is usually sufficient. Life care: Keep the air in your child’s room and avoid taking your child to crowded places. Also, if the air quality is not good and dusty when you go out, have your child wear a mask to prevent the dust from entering the bronchial tubes, which can aggravate the cough. When a child has a cough that does not go away, parents should not worry too much and take the child to the hospital for a timely checkup. In addition, daily care is very important, and good daily care can effectively improve the symptoms of a cough that does not go away.