Just thought I'd let you know that after seeing two ENTs from the
Boston area (one from BI/Deaconess and the other from Brigham & Women,
and having a couple of CTs.  I was treated with anti-biotics, PT for
vertigo, I found another ENT who took another CT and told me that my
sinuses were clear, and that my turbinates were swollen.  This gave me
the same symptoms as sinus.  (stuffy nose, pressure, headache, etc.)  
About a 6 weeks ago I had out patient surgery in his office with
temperature controlled radio frequency to shrink the turbinates.  The
treated area is naturally absorbed by the body over a period of 3- 8
weeks.  The results have been amazing!!  I would say that my condition
is 90% improved.  This, after years of being miserable with 'sinus
problems'.  This doc told me that my sinuses appeared healthy and that
the turbinates were swollen.  All of the other docs told me that I had
problems with my sinuses.

I had never heard of the term 'turbinate' until I saw this ENT.  It
seems that I've been on a merry-go-round with the other so-called well
known ENT's.  I'm sure that this is not the panacea for everyone, but
thought I'd inform you in case any of you (like me) had not heard of
turbinate problems.  Check google for more information about turbinates.

HTH someone