Try BRAT diet... if it works, start adding foods slowly to see if symptoms return.
Idanny, finally I have searched your page , and exactly I have the same case as yours, especially when laying down at night my cough stops until I wake up in the morning, I don't take any medications but I drink boiled ginger, which helps a lot..
Look up thrush...can also cause throat clearing
Please look up thrush...can cause throat clearing and white on tongue
I’m going though exactly the same thing also. Minus the spots on tongue. Symptoms are identical and no luck as yet from the professions. Persistent and Highly frustrating. I too have done mountains of reading though nothing I’ve tried yet seems to be working.
I've been suffering the same thing. Started 20 yrs ago. The last 5 yrs have progressively gotten worse. Been to 7 different doctors in various fields from family practitioner to ENT, allergist, and even Pulmonary. Apparently I have chronic rhinitis, sinusitis, allergies to everything, and acid reflux, and genetics. The next doc I'm going to see is Gastro. Interesting though... when I take pain med (1/2 tablet Hydrocodone/Acetaminophen) 1-2 times a week for back pain my persistent annoying aggravating embarrassing chronic almost nonstop throat clearing goes away for the day. I've explained this to EVERY doc and every response has been "oh, that's interesting." One doc did say that codeine is used in cough syrup. But I don't have a cough. It's a "clearing of the throat!" It's driving me bonkers! I'm not sick. I feel good other than mental duress from this throat clearing.