I don't know if this is common, but is a symptom that I had, which got really terrible during the first several months of getting SFN. I also had a vestibular issue and other hearing issues that went along with it. I saw the ENT at the teaching hospital and it was pretty much a wasted trip as he wasn't able to help me with anything.

Some of the things I did to try to cope with ringing ears: avoid loud noises and situations because they were overstimulating, made my head throb, and made my disequilibrium worse; when I went to bed, I would turn on a fan and use a white noise box; I also tried to ignore the ringing and not think about it; and I quit drinking coffee during that time because I didn't want to stimulate my already overstimulated system. I don't know if quitting coffee helped, but it certainly didn't hurt anything.

I'm happy to say that the ringing in my ears is much better and has almost resolved.