What Is The Treatment For Eustachian Tube Dysfunction?

i was diagnosed with eustachian tube dysfunction about 5 years ago in my right ear as it was constantly popping and had autophony ,i had a grommet installed which relieved symptons but it fell out after about 5 months and symptons came back. had grommet reinstalled and same happened after about 5 months, then i had a t tube inserted which was told would stay in longer and just like the grommet it relieved my symptons .it has been in about 7 months now but it feels like my ear is constantly bunged up as if im underwater , its worse in the mornings when i wake up , it drives me crazy at times and i dont talk much because the bunged up feeling and hearing my own voice vibrate on that side of my head is sometimes unbearable, im thinking if i had a t tube inserted in my left ear it might balance out the autophony and pressure feeling on right side, and i could cope with it then.would love to get an opinion on this, thanks.