An individual patient is always advised to consult their own physician.
Influenza is a virus.
There is an antibiotic that works on Influenza A, that is Ranitidine. This is a bacteria not to be confused with Influenza Virus. Influenza tends to be very infectious and spread rapidly. Immunity once the disease is contracted lasts about 1-2 years. Consequently, the disease tends to enter a community and spread rapidly among those without immunity.