Five-month-old baby cough bronchitis should be given anti-infection, cough symptomatic treatment. Because of the baby’s young age and poor immunity, antibiotics can be applied early. If the cough is persistent, continuous irritating cough, and coughing performance is violent, and even the face is suffocated red, then it is necessary to pay attention to the possibility of chlamydia infection. To give macrolides, such as azithromycin, Liguanza drugs and other anti-infective treatment. If the cough is intermittent, with sputum, white foamy or mucus sputum, oral cefixime or cefotaxime can be given, supplemented with phlegmolytic drugs such as etanercept and pulmonary cough.