Influenza can be treated with antibiotics, but there must be appropriate indications and signs for their use. After influenza infection, the human body may experience a decline in immunity due to the virus, especially a decrease in lymphocytes, which makes it particularly susceptible to bacterial infections. These bacteria are likely to cause bacterial inflammation, with the main symptoms being cough, coughing up yellow phlegm, or having a runny nose with yellow nasal discharge. If such yellow or purulent secretions are observed, they generally indicate a bacterial infection, and it is advisable to boldly use some antibiotics for treatment. Antibiotics that are less toxic, have fewer side effects, and have strong antimicrobial activity should be chosen; such antibiotics often yield very satisfactory results.