---Been having this terrible....dry, non productive cough for over 3 weeks now!
Driving me crazy! No mucous.....just a dry...'barking' cough! Terrible...driving me 'up a wall'...! 
I'm on Tessalon....100 mg.....helps a little....!
Had chest X ray--Friday--it was normal. 
I'm seeing a very good Pulmonologist tomorrow..(Monday...9 Nov)---!
Been reading....on internet---I have NO 'wheezing'.....just this dry cough!
Read about "Cough variant" asthma--! 
Over the past 25 or 30 years...I get "spells'....like this that last for weeks or a couple months---THEN...it'll go away...for years! about 3 weeks ago--due to vertigo---I had to take my Antivert...(meclizine...& it says...NOT to be taken...by people with COPD..or asthma ...is it possible THIS.."triggered"...it?)
I notice.......my nose is itching a lot! Could this JUST be allergies...(As my wife says...! She's always trying to make me worry less)---I think it's the ..'cough variant'...asthma-- 
Tomorrow...I assume my Pulmonary Dr--will give me spirometry----Will that tell her if I have this type of asthma?
A few years ago---Dr. gave me..."Medrol"...pack..(steroids)--made the inflammation go away.....THEN...last year.......my E/N/T Dr.....gave me a "medrol"...pack for an ear inflammation..& guess what.......it "triggered"......my irregular heartbeats! (And Dr. said to discontinue it)---- 
ANYWAY...who has either.....1) "Cough variant asthma'...OR.....an "Allergic cough"...(WHAT the heck is in the air in the Autumn ....anyway?
But..PLEASE----you people here have given me...Sooo much support...comfort & kind words...you have no idea ...how much you help me! 
Thank God.......when I called Pulmomary Dr.--She was kind enough to get ON the phone...& schedule me...for tomorrow! Any idea of WHAT she can give me...to stop this terrible cough? It is driving me...crazy! I will let you all know how I make out tomorrow...with my Pulmonary Dr--- 
Thanks so much---regards--Robert