Post nasal drip/? persistent cough?

Given your history, the docs have eliminated all the obvious causes. If you have not had a chest x-ray, CT scan of chest and sinuses, and pulmonary function test, these diagnostics would be the next logical step.

Its very unusual for someone to experience the symptoms you are describing when you wake in the morning unless you are breathing only through your mouth, if an irritant or allergen is present in your home, or if there is lung disease. The day time coughing could be due to the chronic problems that occur when you are sleeping. You could try sleeping a few nights with a surgical mask and a vaporizer to see if the problem changes. If so, this points toward breathing only through your mouth at night or an allergen or irritant in the air.

I had a persistent cough & that post nasal drip for about 4 months...not even close to the long time you've had it. The cough would wake me up at night. I finally went to my Doc & from what I describred she told me I most likely had a sinus infection. She prescribed an antibiotic for it. I told her that otherwise I felt fine & that I didn't think I had an infection. I also got a chest X-ray which showed no problems. After finishing the antibiotic my cough improved like 95%. I still cough occasionally but I think it is allergies. So, my Doctor was correct in her diagnosis.

I wish you well.

Ehm..

The food that you swallow travels down your throat and is pushed by contractions of the muscular esophagus. In the area where the esophagus joins the stomach a valve-like mechanism, known as lower esophageal sphincter (LES), is located. The closure of this muscle prevents stomach acid from backing up, or refluxing, into the esophagus. LES malfunction is the first factor that causes and contributes to gastro-esophageal reflux disease. In a healthy individual, the LES relaxes only when food passes from the esophagus into the stomach. After the food passes into the stomach, the valve shuts off, keeping the stomach content and acid inside. However, when the LES is weak and doesn't close properly, acid can splash up into your throat causing painful burning sensation, called heartburn.

A good natural method to cure your acid reflux can be found on this site http://www.goobypls.com/r/rd.asp?gid=568

I hope it helps

ive been pretty similar for the last 4 months and the a couple of the docs think it could be a type of acid reflux - LPRD - of which there is no attached heart burn or other reflux type things. A high doseage of Lansoprazole works quite well. good luck.

Have yourself checked for dairy allergy, it tends to increase mucus production and could be the simplest reason for your coughing.

Stop smoking

You may want to try singulair... It is better than alegra and zyrtec... It really is good stuff!! Hope you feel better soon.

Did you see an allergist?

maybe you got a dusty house