These are just some thoughts I had. First, I figure there are two ways to repair tinnitus. Either change the way the brain interprets the sound so that even though the components in the ear may be damaged, the brain doesn't actually experience tinnitus. The other way would be to undo the damage to the ear so it stops giving the wrong signal to the brain. Obviously this way would be better but might not be easier. I am talking about loud noise as the cause here. As far as actually repairing sections that are damaged, the fact that some people seem to notice their volume goes down may indicate that some repairing is taking place. Everyone says once the parts of the ear are dead they are dead, but they might not be. What if they are just slow to heal? I had tendinitis in my arm and it took nine months with treatment to heal. Some people get tendinitis and it doesn't go away because it doesn't heal correctly. When you get tendinitis, it takes a while to heal because tendons don't have much supply of nutrients, so whatever is going to them does so very slowly. With treatment it can heal, but the treatment has to be right, and you have to rest it in the meantime. Tinnitus could be like that. If it seems to get quieter over time, maybe the damage is being undone. Maybe it is a very slow process and takes time. And if you protect your ears in the meantime that could keep it from being injured again.