When your child has phlegm and a cough, the first thing you should do is have your doctor perform a lung auscultation to see if bronchitis or pneumonia is occurring. If there is bronchitis or pneumonia, hospitalization is necessary. You can give your child nebulized inhalation therapy, which is safe, effective and fast-acting. Expectorant medicines can be given, such as Zaozao San, Compound Fresh Bamboo Leak or Etanzin. You can also take anti-inflammatory drugs, amoxicillin granules or erythromycin. The child cough to drink more water, you can give the child boiled some rock sugar pear water to drink, not too sweet. Diet should also be light, nutritious, easy to digest, do not eat spicy, stimulating, easy to fire food, too sweet, too salty, too cold food do not eat, are easy to stimulate the esophagus, causing cough. Put a humidifier in your child’s house to ensure that the humidity of the air reaches 60%-65%. Pay attention to keep warm to avoid your child catching cold again.