@jcboy,
Antibiotics don't work for cold or flu, both of which tend to have self limiting time spans.
Antibiotics are extremely overused as psychological palliatives and this overuse contributes greatly to the presence we deal with now of antibiotic resistant bacteria.
So she barks - I have a b.a. in bacteriology, this was all true back in my lab days and is true now and scarier.
Meantime, I'm glad you're getting over your virus (that is not affected by antibiotics). You need some nice pillows..
I don't mean that snidely, am trying to educate. I'm sympathetic personally, having bronchitis for a month now myself (better now).
So, did you get some chicken soup?