Not all patients with pneumonia will have symptoms of fever and cough. If the patient is elderly and unresponsive, the patient may only show depression, nausea, poor appetite, etc., so it is not possible to judge whether it is pneumonia simply by the symptoms of fever and cough. If the elderly do not have respiratory symptoms, but the patient’s blood routine suggests that the white blood cells are higher than normal, C-reactive protein is also increased, and lung CT or chest X-ray suggests obvious inflammatory infiltration in the lungs, the diagnosis of pneumonia is also clear. Therefore, when the patient is diagnosed with pneumonia, active treatment is needed. If the patient has a bacterial infection, antibiotics are needed to treat it, and commonly used antibiotics include cefixime, amoxicillin, azithromycin, and levofloxacin, etc. At the same time, the sputum culture examination can be perfected, and antibiotics can be changed according to the results of the drug sensitivity.