How does 2 years old child cough to have phlegm to do

2-year-old children can drink water properly, promote metabolism and blood circulation, conducive to the disappearance of cough symptoms. 2-year-old children can also eat rock candy Sydney, loquat and other foods with cough efficacy, promote the disappearance of cough symptoms. If the child cough symptoms serious, need to seek medical advice, according to the doctor's advice to use anti-inflammatory drugs.