I have Menieres Syndrome in my L ear, a symptom of which is low frequency loss, and tinnitus. it goes into remission for 6-7 years and then rages for a month or so, and then reduces. The tinnitus never goes away but it does get quieter, when in remission. A couple of weeks ago when I had an active attack, I literally couldn't hear anything in my L ear. Now, hearing is back for the most part, tinnitus is down. My MD put me on a 4 day lemon juice/water fast and my tinnitus went from a 7 to a 3. There is an entire thread on hearing aids here as well, which many have said actually improves the tinnitus and makes their stereo sound better.
I have been interested in identifying the frequency of my hiss. it's frustrating that there is no treatment for tinnitus that works. A recent study on the NIH website shows that the use of Far Infrared laser in the ear canal, coupled with Gingko Biloba was statistically better than the control group, so there you go.
It's frustrating . . . my favorite way to relax is to listen to music and I have a pretty good system for that. The tinnitus just messes up the soundstage, and pisses me off. That concludes my rant.