About 20 years ago I started having coughing spells.....and I'm still having them. I've seen every type of doctor, (respiratory, ENT, gastrologist, psychiatrists, etc) and tried every med more than once and have had every test more then once, Nothing helps, and theirs no answers as to why I'm coughing.....A couple of doctors even told me, "this is something I just have to learn to live with"...so I've tried.