Children coughing with phlegm cannot be improved by food boiled in water. Because the general food can not play a role in the treatment of the disease. Children coughing with phlegm, usually caused by acute upper respiratory tract infection, acute bronchitis and other factors, if necessary, you can follow the doctor’s instructions to take medication. 1. Acute upper respiratory tract infection: the child can use aminobromine to resolve phlegm, accompanied by fever, you can use ibuprofen and other drugs to reduce fever. Parents can give the child some easy to digest, light diet, such as vegetable porridge, soft noodles, etc., can also give the child some honey water to drink to ease the discomfort. 2. Acute bronchitis: The cough caused by this disease is often more frequent, accompanied by mucus sputum or thick sputum. Bronchitis with bacterial infection can be treated with antibacterial therapy such as cefaclor. At the same time, drugs such as Ambroxol to reduce phlegm, accompanied by wheezing children can be nebulized with budesonide nebulizer solution. There are many other causes of cough with phlegm in children, such as pneumonia. You should not blindly believe that food can cure cough and help expel phlegm to avoid delaying the illness. It is still important to seek medical attention as soon as possible after getting sick.