Pneumonia exacerbated by pneumonia can lead to respiratory failure, infectious shock, gastrointestinal bleeding and other related complications that can be life-threatening, and when a patient is diagnosed with pneumonia, aggressive treatment is required. Mild pneumonia can be treated by oral administration, while severe pneumonia requires hospitalization and intravenous infusion. Once pneumonia is diagnosed, routine blood tests, C-reactive protein, calcitoninogen, mycoplasma antibodies and other relevant tests are completed to assess the possible causative organisms of the infection and different medications are administered depending on the causative organisms. For bacterial infections, antibiotic treatment may be used, and for viral infections, antiviral drugs such as oseltamivir and abidor may be used. If the patient is infected with mycoplasma or chlamydia, azithromycin and erythromycin of the macrolide class or levofloxacin and moxifloxacin of the quinolone class can be used. Therefore, after the diagnosis of pneumonia is confirmed, active treatment is needed to avoid life-threatening delays.