Wearing a mask for influenza can reduce the rate of infection, but it does not completely stop the spread of influenza. Influenza, full name influenza, caused by influenza virus, often acute onset of illness, nasopharyngeal symptoms are light, heavy systemic symptoms, accompanied by high fever and muscle aches and pains. Influenza is mainly spread by droplets. Mask is an effective protective tool, on the one hand, can reduce the probability of their own contact with the influenza virus, on the other hand, can also reduce their own respiratory secretions spread. However, it does not completely block the transmission. Scientific methods of wearing masks and N95-grade medical masks can improve the protective effect of masks against influenza virus and further reduce the transmission rate, but still cannot completely block the transmission of influenza. In addition to wearing masks in a scientific and rational manner, methods to prevent and control the transmission of influenza also include: washing hands frequently, opening more windows for ventilation, and coughing and sneezing hygienically. If you develop symptoms such as high fever and muscle aches, please seek medical treatment promptly.