Influenza A is an acute respiratory infectious disease caused by infection with the influenza A virus and can be treated in adults with medications such as oseltamivir, zanamivir, and acetaminophen. Patients infected with the influenza A virus may experience respiratory symptoms associated with a sore throat, dry eyes, fatigue generalized muscle aches, and coughing up sputum. Adults can be treated with antiviral therapy such as oseltamivir phosphate and zanamivir. If the patient has fever symptoms, acetaminophen, ibuprofen, etc. can be used to reduce fever; if the patient is combined with bacterial infection, sensitive antibiotics such as cefixime can be used for treatment. It is recommended that during the period of illness, patients should not be overworked and pay attention to regular diet. Note that the above drugs should be used under the guidance of a doctor, avoid unauthorized use of drugs, so as to avoid adverse effects. If the patient’s symptoms are not improved by the above drugs, it is recommended to consult a doctor in time, complete the relevant examination, clarify the cause of the disease, and symptomatic treatment.