I've tried everything I mean everything what else can I do I'm very very tired.
I cough also all the time...not as long as you have..I have Bronchietasis with Severe Allergies mixed it with a couple of other things I won't bore you with...I just take one day at a time..and pray for a god day...do some research on Google and it might help you....good luck...
Thanks
Have you tried swallowing some food grade coconut oil. Try a google search, Coconut oil, cough.
I hope you can get some relief, soon.