Thanks for that tip Dr. Mandell - I got some relief with it, but today my right ear is stubbornly feeling plugged, worse than usual.
I had discovered a way to get relief from plugged ears was to be sitting, then bow my head down between my knees, pinch my nostrils closed, and GENTLY put a little air pressure to my [closed] mouth.
Then release the nostrils before sitting upright. Sometimes I suck in if the positive pressure does not relieve [after the blowing outwards].
I imagine there is some danger of blowing out an ear drum by doing that too hard?
I think I am balancing, or clearing, the Eustachian canals...
My hearing improves after that, and sometimes it even reduces my roaring tinnitus. I am a singer and this seems like it would be very beneficial for singers to know.
Q: Is it true that about once every 20 minutes one ear/canal is more open than the other, then it changes sides?