I have suffered from Ear, Nose and Throat issues ever since having a cricket injury to my nose at primary school. Until I was in my twenties I couldn't breathe through my nose at all!!
I have had various operations to cure congestion, swellings and headaches years ago and whilst the last two were fixed up pretty well, I have had debilitating congestion for many years, especially with the change in seasons or during DAMP weather. I have been an avid Apple Cider Vinegar and honey imbiber for years but I recently upped my dosage to twice a day.
I started "pulling" with Coconut oil and then started actually eating the stuff too. I finally gave up DAIRY completely a few months ago and boy what a difference to my congestion all these actions have provoked!
To anybody being driven crazy with blocked ears especially (mine felt as if they were filled with concrete but there was seldom (but occasionally) an excess of wax in them strangely enough), give some, or preferably all, of the above a trial and monitor your reaction.
ALSO, I have not seen on this excellent site any reference to an Ayurvedic trick, whereby you alternate the closing of the nostrils and do the various breathing exercises they recommend. Takes about a week to gain relief but worked a treat for me even before I embarked on my "Earth Care Journey".
I occasionally use the Neti Pot Remedy too. Go well!