Nanners I sugger from chronic sinusitis. My ENT doc has been after me for a few years to have the surgery, but all the reports I have had were that it has limited success rates. When I flare into a full-blown infection he uses levaquin, which is one of the quinolone antibiotics. It does have some side effects -- there have been reports of tendon ruptures in the legs, not sure why, but I have always done well with it. He also suggests taking probiotics to maintain the gut flora during the course of treatment, but that is a good idea with any antibiotic. A second line AB for sinusitis is probably Cipro.