Waxing After Exercise Ear Problem.?

Ear problem.? - waxing after exercise

Eh.
I have a problem with my left ear.
normally during and after the training I (that) the practice of volleyball, my right ear gets "connected".
When this happens, my own voice sounds louder in my head.
sometimes they do "unplugged" I hold my nose and try to suck air through the nose.
works only for a brief moment or two.
and sometimes it is not working.
I have tried to use kits for the removal of ear wax, but it seems to help.
What is causing my problem?
ND & How do I solve this problem?

thnx
:)