Live with it. Cheaper.
Mine was cured with hearing aides.
People who are deaf as fence post often have severe tinnitus. Mine was so bad it kept me up at night. When I got hearing aides the first thing I did was to enjoy the silence and took a nap
I’ve have tinnitus and sleep apnea for decades and my solution to both, which is very cost effective and cost well... Absolutely nothing... Is to ignore the ringing and to wake up when I stop breathing.
I’m pretty sure I have saved thousands.
If you shine a laser light in one ear, you will see the light come out the other ear....