How long it takes for adult pneumonia patients to recover from infusion therapy is related to their pathogens and the severity of their disease, and cannot be generalized. Adult pneumonia is usually lobar pneumonia, and the common causative agents are Staphylococcus aureus, Streptococcus hemolyticus, and Streptococcus pneumoniae. In case of common viral and bacterial pneumonia, the body temperature can gradually return to normal with no cough, fever, dizziness and malaise after about 7 days of infusion. In the case of pneumonia with specific pathogens, such as mycoplasma and Staphylococcus aureus infection, the infusion treatment takes longer, usually about 14 days. If a patient with pneumonia has a serious condition or is in poor health, the duration of infusion therapy can be relatively longer. In addition, patients with pneumonia are advised to eat a light diet, strengthen their body nutrition and drink more water during the treatment period, while paying attention to avoiding spicy, greasy and irritating food, which is conducive to disease recovery.