Of course, I'm not saying that inflammation is the cause for other people's tinnitus. I asked the surgeon why the "ringing" in my ears was so loud after surgery since he was not working anywhere near the auditory nerve. When he saw me two weeks later, it at least was not so loud as to drown out conversation. The only explanation he had was that he disturbed the membrane that encases the brain and that was swelling a bit and perhaps tugging on tissue near the auditory nerve.
That made sense, since I know that in my body, parts that have been traumatized by either surgery or injury hurt when the barometric pressure changes. The auditory nerve has no other way to "tell" you tissue around it is swelling and it hurts, except to add noise to your audio signal. Just as the optic nerve (the site of the tumor) "told me" it was being compressed by parts of my central vision disappearing (being devoid of signal). Over time, this sensitivity to B.P. diminishes as the body heals. For me, that seems to be about six years or so.
When the sun shines, bask.
Classical Guitar forever!