I had braces as an adult to bring in two impacted canine teeth. Before
the orthodontia I had colds each year that sometimes led to sinus
problems but things always resolved within 2-3 weeks.

During the orthodontic work and as the upper canine was positioned--it
came down very, very quickly--I began having sinus problems. Because
these problems hit during cold and flu season I did not make a
connection between the sinus symptoms and the orthodontic work.

However, after several months, the sinus problems continued, worsened,
and have remained unchanged. It has now been 18 months since the
impactions have been brought in and the braces removed. Still, I have
chronic post-nasal drip. Which by itself isn't so horrible, but it
causes a pretty bad cough and the cough brings on severe asthma
attacks.

I am working with an ENT who suspects that this is related to
allergies. Which could well be the case. Certainly I know that I have
allergies. But I've had allergies forever--the post-nasal drip, which
is non-stop, started so suddenly that I find it hard to believe that
it's allergies or that it's completely related to allergies.

I made the connection to the orthodontic work when I looked at a
timeline of the onset of symptoms and how those symptoms aligned with
bringing in that upper canine. I'd mention this to my ENT but I wonder
if it's completely left-field to correlate that work and my symptoms.
Is it crazy?

If there could be a relationship, how would I proceed wrt this? I just
want to resolve the problem. I don't care about how it happened--just
want to fix it. If something did result from the orthodontic work,
would that be visible in the CT scan of the sinuses? I had two sets of
scans and my ENT never mentioned anything abnormal except for lots of
blockages, which she cleared up with medications.

Where might I get more information about this?  Thank you for any help.