Pediatric pneumonia is one of the most common respiratory diseases in infants and children today. Due to the poor immunity of children, the disease is likely to occur in the winter and spring seasons. Pneumonia caused by viral infections does not require antibiotics. Pneumonia caused by bacterial infection is considered, antibiotics can be used, generally amoxicillin clavulanate potassium or cephalosporin antibiotics can be used empirically, azithromycin can be used but not as first choice, if it is determined that pneumonia is caused by Mycoplasma pneumoniae or Chlamydia infection, azithromycin or erythromycin is preferred, but azithromycin is not recommended for children under 6 months of age, erythromycin can be used. The main side effects of azithromycin and erythromycin are gastrointestinal reactions.