If pneumonia develops after a cold, it is important to perform a prompt pathogenetic examination, after which empirical anti-infective therapy is initiated. If the patient is young and has no underlying disease, he or she can be treated on an outpatient basis, usually with penicillins, macrolides, or first- or second-generation cephalosporin antibiotics, or quinolone antibiotics. Those caused by mycoplasma or chlamydia can be treated with doxycycline or minocycline. For more severe cases of pneumonia requiring hospitalization, beta-lactams, or a combination of doxycycline, minocycline, or macrolide antibiotics are recommended, and pneumonia caused by influenza virus should be treated with oseltamivir. For the older, with underlying diseases, hospitalization, can actively use piperacillin, tazobactam or cefoperazone sodium sulbactam sodium drip, cough, cough sputum obvious people can also take nebulizer treatment, appropriate rehydration, serious cases at the same time oxygen, medication at the same time should pay attention to nutritional intake, but also should be regular monitoring of body temperature, respiration, pulse, blood pressure and mental status.