I have had sinusitis(es) for 12 years, and been prescribed most o...

I have had sinusitis(es) for 12 years, and been prescribed most of the different antibiotics. Sometimes, they do a culture and sensitivity, but usually not. They just roll the dice, and pick their favorite one. I have had confirmed sinusitis that responded only to Levaquin (or Tequin), and some that didn't, but did get cured under Augmentin (amoxicillin +), or one of the others: Biaxin, penicillin, Cipro, you name it. The side effect I noticed most with Levaquin, though, is the stomach upset. When I remember to eat yogurt everyday, though, I am fine. Why don't Americans know about yogurt? In Europe, I am told, the pharmacist "prescribes" some pills that have the same cultures as yogurt, when you get antibiotics.