4 years old baby cough for a long time how to do sputum

Baby cough for a long time has sputum, and respiratory tract infection, should be atomized treatment, but also can take cough expectorant drugs, at the same time should be based on the type of pathogen, the use of anti-virus or antibiotics, control infection. Daily diet can give the baby to eat pears, white radish, lotus root, yam and other Qingfei food.