Seems like this DMSO (dimethyl sulfoxide) stuff has been on my radar for the past 6 months, not sure if you've ever heard of it. I haven't tried it, yet, myself, but "A Midwestern Doctor" (www.midwesterndoctor.com)(Twitter handle-@MidwesternDoc) says it's basically a miracle cure for many ailments. Yeah, we've all heard that before, I know!
Came across this on Twitter/X:
"Been using DMSO for my tinnitus for about 8 months now. It is not gone for 100% although I had 3 completely silent days, but it is like 90% less koud. Very very pleased"
https://x.com/ThePixelChick70/status/1922738587574861981
I know you have a different ear issue, but figured I'd pass this along in case you're interested. I picked up a bottle of a recommended brand at Amazon for $30-->Amazon.com: Nature's Gift 99.9% DMSO Liquid - Glass Bottle 8 Fl Oz : Health & Household
