Oh, and stop eating pufa oils at the same time you start taking the EPA. The point is to get your omega 3s way up and your omega 6s way down.
No packaged foods or any food cooked in canola oil and other seed oils. When you have to eat out all their stuff may be cooked in poor oils like those. So at home never use them. Only coconut oil, butter, very high quality organic olive oil (most are allowed to have bad oils mixed right in and sold as olive oil). Packaged snacks (chips) would be huge offenders, though there are some health food brands switching to coconut and avocado oil cooked chips.
My friend has stuck to this diet and his tinnitus never returned.
Seems as if much of the suggestions here revolve around getting inflammation and auto immune problems decreased. Suspect that is the key for many.