The best thing you can do to recover from the flu as fast as possible is to stay hydrated, rest, and isolate. There is no cure for the flu, antibiotics are ineffective against it, and antiviral medications like oseltamivir (Tamiflu) only make symptoms go away about one day more quickly and can have side effects. Over-the-counter medications may provide some relief from symptoms, but they do not make the flu go away any faster.