Doxycycline
bacterial infection
"Every time I get a sinus infection I ask for Doxy it clears me up in a few days. I don't have any bad side effects, guess I'm lucky. I would recommend this medicine highly for sinus infections since it works so fast. I have to work and don't have time to be sick, I'm also a single mother and can't be down too long and this medicine never let's me down!"