Influenza can be prevented by taking general precautions, vaccination and oral medication. 1. General precautionary measures: Maintain good personal hygiene habits, such as washing hands frequently, keeping the environment clean, and reducing trips to crowded places during the influenza epidemic season; maintain good respiratory hygiene habits, such as covering the mouth and nose with tissue paper when sneezing or coughing, and then washing hands. 2. Vaccination: Influenza vaccine is trivalent inactivated influenza vaccine and tetravalent inactivated influenza vaccine, it should be noted that infants under 6 months of age are prohibited from using inactivated influenza vaccine. 3. Drug prevention: Drug prevention cannot replace vaccination. For people at high risk of severe influenza who have not been vaccinated or have not gained immunity after vaccination, drugs such as oseltamivir phosphate capsule and lianhua Qingdian capsule can be taken orally to prevent influenza. It is recommended that patients take precautions to prevent influenza that are appropriate for them under the guidance of a physician.