<div class="FTQUOTE"><begin quote><i>Originally posted by: <b>BelEAche</b></i>
an ent should do a culture to see what your growing and give you the most effective antibiotics.. oral should do the trick, but iv'e been told it could take 4-6 wks to kill a sinus infection.. f</end quote></div>
most studies with good antibiotics that do pre & post-therapy sinus punctures show that an infection can go away in 5 days (if it's staph, H. Flu, or M. Cat) with an antiobitic such as Ketek or 14 days with cipro/levo/avelox.
i could see the infection taking longer if you're not controlling your environment for allergies (infection will just return) or not doing an intranasal steroid.