what can be the cure against influenza virus?

There is no cure for influenza, because the virus is constantly changing between ancestors and the virus itself. Like when you get the flu shot, its protective of the flu strain from the year formerly, so you're really about 80%protective from the unsullied strain. The best way to back prevent this is flu vaccine, wash your hand, and Vitamin C needed to build up that immune system.
Take lots of vitamin C, drink lots of fluids, and Paracetamol(Panadol) to keep the hallucination down.
If you have cough, pocket 1 tsp of ginger juice near 1 tsp of honey.