After taking amoxicillin for ten days prescribed by my GP, then 10 days of Augmentin from my ENT I still showed signs of a sinus infection. My ENT now gave me 10 days of Levaquin. I down to three more pills and this stuff really knocks you out. I am exhausted. Anyone have success with Levaquin? My sinuses are getting better but cant wait to finish the 10 days. I return to the Dr. on Friday and am hoping this is it.