Vitamine C, plenty of rest, no stress, no computing, curtains closed, your wife in the other bedroom if applicable, no tv, plenty of “kamille” tea (is good for infections) and some “paracetamol” got me going again from a severe flue. I rather had a computer virus.
If you have H51N you are in deep trouble (H1N1 virus is a new one to me).
Wash your hands frequently with killing disinfect. soap.
Again the flue can be very dangerous do not underestimate the signals.
Get well soon.
Rick