It sounds like it was not wax build up in the outter ear, but instead an often misunderstood and misdiagnosed
swelling and fluid retention in the eustachian tube or inner ear.
This often creates a
clogged ear feeling as well as the pops and gurgles and sloshing you describe. It commonly causes
muffled hearing issues too.
The reason it seemed better in the shower is the heat from hot water and steam reduces swelling
(thats why a hot shower helps sore muscles).
There are several things you can try if this
clogged inner ear happens to you again -as it likely will. It seems once you start having
blocked ear, it is more likely to occur again. It is usually brought on by a cold or allergy flare up or sinus infection, it is not caused by an ear infection but it *can cause an ear infection* to occur due to the retained mucus sitting there for so long (some people have the clogged ear for months!).
To unclog your ear you need to reduce swelling in the eustachian tube so the fluid being retained can drain. It drains down your throat or can be blown out of the nose. For my home remedy that has long instructions on how to unclog ears, go to my website
www.earadicator.com - clogged ear remedy. The instructions are way too long to post here. You can buy the stuff you need at the store and do it at home.
The trick is
you DO NOT put anything in your outter ear, as it cannot pass thru your ear drum, and the problem lies behind the ear drum.