Re: a whole month of levaquin???!
In 2004, I took a large dose of Levaquin and ended up in physical therapy for six months--did you know that there is a "black box" warning on this drug because of dangerous side-effects?
It can cause tendon ruptures, peripheral neuropathy, vasculitis, and a whole bunch of other nasty stuff. Happened to me.
Oral antibiotics are not very effective against chronic sinus infections--try irrigation with a machine instead. Another option is nebulized antibiotics (but not Levaquin/Avelox/Cipro). Augmenton will work just fine.