I'm sure this is a common subject in this and other forums, but I thought
I'd give this a shot - nothing else works and I've been through numerous
doctors and specialists.  All of them throw their arms up in the air - they
just can't help me.

This dry, nonproductive cough, labeled "idiopathic" by several doctors,
lasts for a few months and can drive you nuts.  I'm in perfect health, too.
The cough will finally burn itself out, and go away for several months or
almost a year.  Then it seems like a cold or flu will trigger the cough
again.

This time it came back, but I didn't have a cold or the flu.  I had no
symptoms at all, it just came back this winter.

I've been tested for asthma, also, at a local hospital's outpatient clinic.
The results were negative.

They've checked for polyps on my vocal cords, also.  None were found.

It was suggested I might have acid reflux - but I haven't any symptoms, so
it was dismissed.

I've tried the prescribed inhalers, too.  Like Pulmacort, and Ashthmacort,
if not others.  They don't releive the cough, and in most cases inhaling
those vapors makes me cough worse!

Post nasal drip?  This has been suggested, but I can sleep well at night
without coughing a bit.  I just can't be sure of this - I haven't he classic
symptoms of a runny nose, and post nasal drip.  I would imagine it would
bother me at night, when you're trying to sleep, too.

I have mild allergies here in the Pacific NW, but nothing an OTC medication
can't remedy.  Hayfever, ragweed, tree pollen, pet dander, etc.  Nothing
unusual.

Of course, it's damp here in Washington State.  What if I moved to a dry
climate like Arizona?  The doctors I've visited won't embrace this notion -
I might cough there, as well.

Or how about dust?  Or lack of a recirculating furnace, with a filter?  Is
that possible?

Any suggestions, or things to try?  This cough is really a nuisance, beleive
me.  Anyone else suffer from this problem?

Thanks!