Depending on the extent of the pneumonia disease, the infecting agent and the child’s own physical condition, there are differences in the time needed for treatment. Pediatric mild pneumonia is usually infused for 1~2 weeks, severe pneumonia is usually infused for 2~3 weeks, and pneumonia caused by mycoplasma and chlamydia infection may need to be infused for 3~4 weeks. 1. Mild pneumonia: in most cases, pediatric pneumonia is caused by bacterial infection, the child’s general condition is still good, the infusion treatment is usually 1~2 weeks, the commonly used anti-inflammatory drugs are azithromycin. 2. Severe pneumonia: If the child’s pneumonia is more serious, in addition to fever and cough, accompanied by comorbidities, such as pulmonary herpes, usually need to be treated for a longer period of time, and the duration of the infusion may be extended to 2~3 weeks. 3. Mycoplasma and Chlamydia infections: Mycoplasma and Chlamydia infections caused by pneumonia are more common in children, if the pneumonia caused by Mycoplasma infections, the treatment time is relatively longer, usually need to be infused for 3~4 weeks to be completely cured, the general choice of anti-inflammatory drugs include roxithromycin. Pediatric pneumonia may be caused by different pathogens, and the resistance of children is also different, so the duration of infusion treatment is also different. Pediatric pneumonia requires immediate medical attention for evaluation and targeted treatment under the supervision of a physician.