Influenza generally refers to influenza, and wearing a mask correctly can prevent influenza. Influenza is an acute respiratory infectious disease caused by influenza viruses. It is widespread and spreads mainly through contact and droplet transmission. Wearing a mask can prevent influenza to a certain extent. By wearing a mask correctly, droplets with influenza virus particles can be effectively blocked from entering the human body through the respiratory tract, thus preventing infection. For suspected or confirmed influenza patients, isolation treatment is required. To prevent influenza, attention should also be paid to avoiding contact with influenza patients and minimizing public gatherings and group recreational activities. In addition, for people with hepatitis B who have more underlying diseases, children, the elderly and other people with weakened immunity, they can be vaccinated with the appropriate vaccine to protect themselves against the virus when influenza is prevalent. It is recommended to strengthen the awareness of personal protection during influenza, wear masks when going out and increase physical exercise appropriately in order to strengthen the resistance, thus preventing the invasion of the virus.