Ear wax

Any ENT specialist will help you.

Jesuu!!

glycerine

Happened to me while I was in sec. circa 2000/2001. Went to Survey Hosp.(the Catho one). Was given some liquid/oil stuff to use for some 2-4 days. Came the D-day, the doc chemshaad some water, took a ball/baloon shaped plastic thing with a nozzle, sucked the water with its tip and put it right into my ear. Squeezed the ball thingy HARDDDDD. Felt like my brains are gone explode!!! After releasing, just heard a loud POP and voila!!! My hearing came back. Quick recovery.