Sinusitis
"I&#039;m allergic to penicillin and Zithromax, so my doctor prescribed Avelox after I&#039;d had a sinus infection for 3 weeks.  (I try to avoid taking antibiotics since I&#039;m allergic to the normal prescriptions.)  I started to feel better after the first dose.  My only complaint is that the pills were a lot more expensive than simple amoxicillin."