How does child cough old bad have yellow phlegm to do

The child always has bad cough and yellow sputum, which is usually caused by inflammation such as pneumonia and bronchitis. You need to take the child to the hospital for blood routine test and C-reactive protein test for diagnosis. After inflammation is diagnosed, give the child oral azithromycin, cephalosporin and other antibiotics, and also use budesonide and ambroxol hydrochloride aerosol treatment.