It can get better, hold on to this hope. When this loud echoing sound drove me mad, it seemed like it would never fade nor go away - but it has decreased greatly to the point I barely hear it most of the days. It takes time, but it can get better.
@Ondine i hope it does .. it was low till a acoustic reflex test bumped it up a notch 2 weeks ago and the hypercacusis.. ive also had tinnitus mild for 9 years under that..