Nine-year-old children with colds and coughs are mostly caused by viral infections, generally symptomatic supportive treatment can be, such as the combination of bacterial infections need to use antibiotics and other anti-infective treatment. 1. Symptomatic supportive treatment: children with colds and coughs should drink a lot of water, eat a light diet, pay attention to rest, supportive treatment will help the recovery of the disease. If the cough is severe and accompanied by phlegm and other symptoms, you can follow the doctor’s instructions to take cough medication for symptomatic treatment of phlegm, such as aminoglutethimide, aminoglutethimide and so on. 2. anti-infection treatment: combined with bacterial infection need to take sensitive antibiotics for anti-infection treatment, such as cefaclor, amoxicillin, azithromycin and so on. Nine-year-old children with colds and coughs need to be treated in a timely manner so as not to miss the opportunity for treatment. All of the above drugs should be used under the guidance of a doctor.