Amoxicillin / clavulanate
"I have 1-2 chronic sinus infections a year and this time I was given Augmentin the first time and LET ME TELL YA. Im on the 2nd day and after the 2nd dose I woke up with my sinus headache basically GONE and it was sooo bad the day before. Only have clogged ears right now. No side effects besides a little bit of stomach pain but so tolerable, no nauseousness at alll"