How long pneumonia requires infusion therapy is related to factors such as its pathogen and severity of the disease, and there are individual differences. Pneumonia is an inflammatory lesion of the lungs caused by various causes, and different types of pneumonia have different treatment methods and treatment courses. Common causative organisms include Staphylococcus aureus, Streptococcus hemolyticus, and Streptococcus pneumoniae. In the case of common viral or bacterial pneumonia, the milder cases usually require only about 7 days of infusion, and the body temperature can gradually return to normal, and symptoms such as cough, fever, dizziness and malaise can be relieved until they disappear. For infections with specific pathogenic bacteria, such as mycoplasma infection, the course of infusion usually takes 14 days; Pseudomonas aeruginosa infection usually takes 14-21 days. In elderly patients with more pronounced symptoms and in combination with other symptoms, most require 2-4 weeks of infusion therapy for gradual recovery. During the treatment of pneumonia, patients are advised to eat a light diet, drink more water, eat more food rich in protein and vitamins, and get more rest to strengthen the immunity of the body and promote recovery from the disease.