Tony, you are right. But there is one little thing about the common flu some people tend to forget: Many people that have the flu also have an inflammation (usually sinusitis). That is where antibiotics can come in handy.

But still: You are right, antibiotics don't help with the flu itself because it is caused by a virus.

One more reason why a physician shouldn't prescribe antibiotics to treat the flu. But still many do.

cu,
sven