Atypical RAD?

For about the last 10 years I have had a problem with a chronic cough in the fall/winter months. It isn't always tied to a cold but does occur during my worst allergy season. It's a dry, hacking cough and I have been told by an allergist, my FP, and a pulmonologist that this is RAD.

It does not respond to prednisone, inhalers, allergy meds, or tessalon. I can get some relief with Tussionex but that's sort of a last resort because I get so groggy that I can't drive to work.

I have tried humidifiers to keep the nasal congestion moving and Flonase. Lying flat actually makes the cough better for me. But after being upright for about 10 minutes it all starts. I have cracked ribs with this cough in the past and it is not only annoying to me but I am sure it annoys everyone around me. Talking makes it worse. (so I guess the answer is to lie flat and not cough!)

I gave up soda about three years ago, don't drink coffee or tea and try to steer clear of chocolate. I'm not a fan of milk but do occasionally eat cheese (no increase of symptoms). I drink water until I feel like I could float and basically don't know what else to do at this point.

Does anyone have any suggestions? I have had my current cough for about two months and I'm ready to be done. Thanks for any suggestions.

[National Jewish]

In a person who has a normal chest x-ray and who doesn