Tinnitus is very common with PCS. There is no way to predict if it will go away. The best way to deal with it is to learn to find something else to listen to. The PCS brain can get stuck listening to the ringing. Learning to ignore it is a skill worth developing.

The goal is to not let it frustrate you. That only increases your brain's desire to listen and focus on it.

The tinnitus treatments sold on TV and such are bogus. Avoid loud noise when ever possible. It can trigger it. Mine gets triggered by drinking cold liquids.

My best to you.