Go to your doctor. Ask them to wash out your ears with liquid. This helped clear my eustachian tube after I was vagabonding for 6 months without q-tips, only to use one well into the trip and jam a glob of wax in the back. I was pretty grummy, but after washing it out I felt an immediate relief. It was like that for over 2 months. Whats more, is you could try an earwax candle. the kind that you light & the heat draws out things in your ears. eek.
Good luck. Hearing is a very important sense while hauling on wheels.