A 10-year-old child with a runny nose and yellow phlegm cough may be associated with upper respiratory tract infection, rhinitis, bronchopneumonia and other factors, the treatment is mainly based on medication. 1. Upper respiratory tract infection: 10-year-old children with a runny nose and yellow phlegm cough, may be associated with bacterial infection or viral combined with bacterial infection and other factors, it is recommended to go to the hospital for routine blood tests, if you consider the bacterial infection requires the use of cephalosporin, amoxicillin and other medicines. 2. Rhinitis: children with the above situation, may be related to allergic rhinitis factors, it is recommended to go to the hospital for allergen examination, if the symptoms are more serious cases need to be loratadine tablets, mometasone furoate nasal spray and other drugs. 3. Bronchopneumonia: children with bronchopneumonia may also appear in the above situation, you can improve the sputum culture, respiratory pathogenetics nucleic acid PCR, macro genes and other related tests to identify the pathogen, can be prescribed to be aminobromine, acetylcysteine and other drugs nebulized cough sputum. The common pathogens include Staphylococcus aureus, Haemophilus influenzae, etc. Cefazoxime, piperacillin and other anti-infective drugs can be given under the guidance of the doctor. Children may also have other reasons for the above situation, it is recommended to go to the hospital in a timely manner to conduct relevant examinations, clear causes of the active symptomatic treatment, in addition to the above medication is recommended to take under the guidance of a doctor, not to be used on their own, in order to avoid the danger.