bacterial infection
"i have been suffering with a sinus infection for over 2 months. I was on Bactrin for 14 days , Predisone for 10days which  is a steroid which to allergy medicine used OTC sinus medicine then finally was given this med. After only one dose my sinus ,ear pain & sore throat cause by post nasal drip began to disappear. I did experience  some coughing the first time Ilaid down but guess what the mucus was not longer greenishyellow draining it was  super dark green. That was one serious infection! Tried & true believe me it worked for me. I had laryngitis for 2 months and two days after this medication my voice is back:) two thumbs up"