Drinking oral antiviral solution in advance cannot prevent influenza A. The flu vaccine is required to prevent influenza A. Antiviral Oral Liquid is a kind of medicine with the effect of clearing away heat and detoxifying the toxin. Antiviral oral solution can be used to treat upper respiratory tract infections, influenza (including influenza A), mumps and other diseases. Drinking Antiviral Oral Liquid can be used for the treatment of influenza caused by influenza A virus infection, but it does not prevent the disease. To prevent influenza A virus from infecting the body, it is necessary for the body to produce antibodies to the influenza A virus. Only those who have been infected with the virus and have recovered from it, or those who have received the influenza vaccine, can induce the body to produce antibodies to the influenza virus, thus preventing influenza A. In addition, regular exercise and a nutritious diet are important. In addition, regular exercise and a nutritious diet can help strengthen the body’s resistance and reduce the rate of influenza A virus infection.