Good Morning Ryan, I am not a medical person but regularly work with
asthmatics with your kind of problems.
I would strongly suggest you read and understand the effects of
antibiotics as mentioned by Gary Huffnagle (google his name)
I would suggest this information is similar to that given to me in 1969
and which was part of the routine which allowed me to overcome my
chronic asthmatic problem.
Although this will initially sound quite incredible you will appreciate
more as you learn more and apply that information to your situation.
In the case where airborne particles are affecting persons, (which you
may relate to) a daily mucus removal procedure usually proves helpful.
If you might like to try a simple set of routines, I have a netsite at
http://www.home.acenet.net.au/lagas/ which describes the method given
to me and which allowed my problem to be overcome.
This effect is usually easily reproduceable.
If you might try this odd sounding system please note your findings and
comments back on this site.
This is on a take it or leave it basis with no obligation either way
and no costs.
Some extra inclusions can improve the effect, including consuming at
least a gallon of fluid daily, avoiding coffee, avoiding Nsaid type
drugs and identifying the real actual cause/s of your problem.
(dustmites generally means carpets)
My interest in this stuff has been mainly problem substance
identification, you will learn more if you give it a try. Any benefit
will be apparent well within foruteen days.
Under normal circumstances you probably would have received no answer
to your post here, but watch the magical effect my answering here will
achieve for you.
All the best, Merlin.

Sound reasonable to me Ryan.  About 30 years ago, I heard that dust mites
don't survive in the desert southwest.  That information came from an
allergy clinic at Tucson,NM.  This seems to be common knowledge now and I've
heard that sustained periods below 50 or 60 percent relative humidity will
do them in.

My first allergy was to "house dust" which came on during a military stint
in Virginia.  I stayed with me for several years in eastern Nebraska.  I
took the allergy shots for "house dust" and they seemed to help but not
nearly as effective as those I took for later acquired allergies to ragweed
and grasses.  Later, I moved to Denver and then to the Las Vegas area and I
no longer consider "house dust" a problem.

As a side note, when I first acquired my "house dust" allergy, they didn't
know what component was the active ingredient.  I believe it was roughly in
the 1960's that dust mites were recognized as the problem.  Knowing that, it
may now be possible to make better allergens for desensitization since the
early extracts were made from vacuum cleaner dust from selected locations.

Dust mite allergies are an indoor problem.  They tend to be persistent
rather than seasonal.  If you have only seasonal allergies, this fact would
reinforce the recommendation your allergist gave you.

SJF