Of course "ear" is probably not accurate. It's the left side and right side.

Anyway, the best advice is to convince yourself that it's not so bad. In my experience, freaking out about it seems to only worsen it.

There's no good cure if it's chronic.
Things like lipo flavanoid helps some people a little.

An audiologist can help you with time consuming sound therapy that is supposed to be somewhat effective.

Seeing a psychologist can help too.