My Ear Plugs Up Every Time I Fly. I Have

My ear plugs up every time I fly. I have tried taking Claritin for a few days beforehand, yawning, holding my nose and blowing, and nothing works to aleviate the issue. I flew this weekend and it is still plugged. I can't hear much out of the right ear and my equilibrium is affected. I fell upon getting out of bed this morning and I ran into a door frame on my way out of my office this morning. What else can I do to relieve this?