The duration of pneumonia infusion for the elderly varies from person to person and cannot be generalized. If the patient is in good health and has a common bacterial infection, the course of the disease is about a few days; if the patient is in poorer health or has a combination of underlying diseases, the patient’s course of the disease will be a little longer. 1. There are many factors affecting the duration of pneumonia treatment, including the type of pathogenic bacteria, the type of pneumonia, the physical condition of the elderly and the presence of underlying diseases. 2. If it is a common bacterial infection, the patient has no underlying disease and is in good health, it usually takes a few days of infusion. 3. If the patient’s physical condition is poor or combined with underlying diseases such as heart disease, COPD, diabetes, etc., the patient’s course of the disease will be longer, and the specific cure time needs to be judged in conjunction with the clinical manifestations, laboratory tests, and imaging tests. For the same disease, patients with different physical conditions and different stages of the disease, the treatment methods are different and should be standardized under the guidance of doctors.