First of all, I disagree with Kathy that AFS is suggested here.  AFS has
turned into a "default diagnosis" that is seized on whenever a patient
can't get rid of his sinusitis--if the sinusitis isn't cleared with
antibiotics and surgery, then "it must be" AFS.  It shouldn't be.  Mayo
Clinic, which first invented this AFS theory, has recently backed off on
it, they're not claiming it's the root cause of 95% of sinusitis
anymore.  They have developed tests and examinations for that condition,
and without positive results from such tests there's no reason to assume
you have AFS.

They are now working on a brand-new theory (mucus biofilms), so Mayo
scientists will continue to have fun and be paid.

It's more believable that the infection has long since penetrated your
bone--that's where I'm at right now myself.

As to whether it has a dental origin, any competent dentist can X-ray
your upper teeth and see if you have any abscesses that are penetrating
into the maxillary sinuses.  (You can have a tooth abscess without pain
symptoms--for a while.  Then one fine day, it will suddenly explode with
pain.  Been there, done that too.)

The most current (and controversial thoery) is that it is an
eosinophilic fungal sinusitis.  This is different form the "older"
allergic fungal sinusitis concept.  The body produces MBP in response
to the presence of the mold, but is an immunological response.    I
agree with Steven that this is over diaganosed, but it DOES exist and
with your elevated IgG level to Fusarium and allergy to alternaria,
very possible.  There are some very good articles on the connection of
Alternaria allergy and sinusitis.  I don't have the resources
available, since I am out of town, but you can do a search.  I don't
think you  have to have the allergic mucin for this diagnosis.  Very
little showed in my CT scans, but I have produced dark brown mucus.   I
also had high IgG levels to over 10 molds including Fusarium.  Do you
work or live in a moldy environment?  Fusarium requires a lot of
moisture and can be found in mold contaminated buildings.  It also
grows in moldy wheat and corn.  Do you have an agriculture related job?
It also can  produce a potent toxin called T-2 toxin.  Were you tested
for exposure to it?

Interestingly,  when I had allergy testing done a few years back, I did
not show allergic to anything (but had earlier and did the allergy
shots twice), only the high IgG levels.  I just had testing done again
last week and now show allergic to most molds, so am probably going to
have to go the desensitization route again.

As far as a possible bone infection, that is extremely rare.  But if
you continue to have problems, ask for a BONE SCAN.

Kathyw