Just finished a week of augmentin (amoxicillin and clavulanate) plus predinsone for sinus infection. my off balance has improved but i still have sinus pressure. is this normal?

May not enough: For acute sinusitis, the duration of treatment with Augmentin (amoxicillin and clavulanate) is 10 days, for chronic 3 or more weeks. Thus either you need to take a few more days of Augmentin (amoxicillin and clavulanate) or your symptoms were actually helped by the prednisone. It is also unusual to use Prednisone for acute sinusitis.