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.
I've taken Levaquin for 30 days a couple of times without any problems (it did help but didn't solve the problem permanently) but think you're right that it's just delaying the inevitable trip to the ENT, particularly because there's no way for your family doc to do an endoscopic exam to see why your infection hasn't cleared up.
Can you make an ENT appointment without the family doctor's referral? Based on everything you've shared, it doesn't sound your family doc is being all that helpful and you have a pretty serious history of sinus issues.
I would stay away from the primary care and go with a doctor who specializes in this type of thing maybe an allergist. My PC doctor didnt know anything and told me i didnt have asthma when indeed i did and suffered for quite a while until i almost couldnt even breath. It was over a year i suffered with breathlessness and decided to go outside of him and on my own and so glad i did. My allergy doctor has tried me on about 5 or 6 different antibiotics, she never keeps me on the same thing twice and have only been on any particular one for 14 days tops. Also with the levaquin i was very very scared to take it when i read about certain things such as ruptured tendons but she told me unless i was body building that i shouldnt worry about the ruptured tendon things. It didnt cause me any problems at all. I would though go outside of this doctor and demand to see an allergy specialist if you cannot go outside on your own without a referral.
Cipro is in the same class as Levaquin. It had terrible side effects for me. I took it for a urinary problem. I was on it a month. ruptured tendons are the worst of it, but it also causes tendonitis and over all joint and muscle pain. I've been off it a month and I still feel like crap from Cipro. My knees still hurt along with my back. The first few days I took it I could actually feel my achillies tendon pulling when I walked. I was doing no exersises. Just walking. This is one nasty drug