Get your hearing tested, go to the doctor, or the nurse, they'll stick a "thing" in your ear which pumps a solution around you inner ear canal, any wax in there will promptly get rinsed out. Works a treat.
If you have blocked ear wax, drop some oil in your ear every night for about two weeks ahead of the appointment. Doesn't matter what you use, but probably best to steer clear of Castrol GTX and stick with the castor!
(Dr. Record Spot recommends you have all the above advice checked and confirmed with a medical professional before proceeding, no responsibility is taken for your actions at all, however, on the bright side, if you do ****** it up, at least you'll save a fortune on the next upgrade as you won't need it any more! The surgery is now closed.)