For me, smoke and sinusitis go hand in hand.  Smoke is very irritating to the
sinuses.  When I had a wood stove I
had severe sinusitis.  I understand that
people who live in Alaska have a very
high sinusitis rate due to all the wood
stoves and log fires. Perhaps nasal
irrigation would be helpful.

any rinsing of the nose can be beneficial after a fire.
Murray Grossan, M.D.
http://www.ent-consult.com
http://www.hydromedonline.com