hey you are better off seeing a medical provider first so you can be properly examined diagnosed and treated. most sinus infections assuming you have self-diagnosed correctly are viral and do not require any antibiotics. if there is a bacterial component you may need to treat for more days have from leftover prescriptions. not treating an infection completely encouraged resistant organisms so it is entirely possible that neither one of those antibiotics would be appropriate.
hey have a sinus infection. am i better off with amoxicillin 875mg or amox-clav 500mg?