For me this cold on the neck is a good way to calm the tinnitus. Although I imagine it really depends on the cause. I know mine is not because of injury or loud noise or infection or anything like that. Based on what has happened the past couple of weeks since the tinnitus started, I have seen my doctor twice and been to the ER and based on all of the data and my doctor knowing me, it is very likely that my tinnitus started because of too much ibuprofen but made worse because of my thyroid gland function and getting my blood pressure under control. Both seem to be happening--and I don't this will help anyone who has had noise, disease, damage, tumor, whatever. But it is such a devil of a thing to track---I am understanding what is happening with me.
All day today it has been hardly there and I think I am recovering. I hope some of this applies to others.
I can say that I think that it helps that I am really healthy and I exercise a lot and I have gotten off most all medications and not even supplements instead of real food. I have been trying to heal my body in a lot of ways and most of the time I think it is working.