If an adult develops pneumonia, the recovery period is usually 10-14 days, pneumonia is mainly a bacterial infection, the natural course of the patient is usually about 2 weeks, if effective antibacterial drugs are used, the high fever caused by pneumonia will usually be gradually reduced to normal in about 1-3 days, and the symptoms of pneumonia will be significantly relieved after the use of effective antimicrobial drugs, which are generally advocated for the use of penicillins or cephalosporins, to be Anti-infective treatment. After one week of anti-infective treatment, lung CT should be repeated to see whether the inflammatory lesions have been absorbed and improved, and blood tests should also be taken to see whether the infection indicators such as white blood cells and C-reactive protein have decreased.