Hello,
in March 2015 I got sick (flu/cold) and I started coughing and I never stopped (as for May 2016). I don't smoke. It is a dry cough, there is nothing coming up. I had an endoscopy and I don't have acid reflux. X-rays were clear, spirometry was clear, ct scan clear, bronchoscopy clear except that my lungs were very red and inflamed. Allergy drugs haven't helped. I have turbinates hypertrophy that causes post-nasal drip but when I lie down I stop coughing completely and if the cough were caused by post-nasal drip it would get worse lying down. I was wondering if you could help me understanding what is causing this cough and how to get rid of it, thank you.