Lobar pneumonia requires infusion for 7-10 days, but it also depends on its condition. Lobar pneumonia is mainly due to acute inflammatory changes in the lungs caused by bacterial infection, which clinically manifests as cough, sputum, high fever, chills, generalized body aches, and some patients may have nausea, vomiting, diarrhea, and other symptoms, and severe cases may also have respiratory distress, infectious shock, and respiratory failure. Lobar pneumonia is mainly treated with sensitive antimicrobial drugs to fight infection. After 7-10 days of anti-infective treatment, it is recommended to review the CT of lungs, if the lesion is obviously absorbed and improved, it means that it has been cured, and if the lesion is not absorbed and improved, the need for fluids may take a longer period of time.