My personal experience is that knowing the source of ubiquitous annoyances or health issues much more bearable.
I had issues breathing around Corona and that stuck for 3 years. 1.5 years into that and after running from doctor to doctor I was cleared from a fear that it could be lung cancer or some shit. Still don't know what it is, but that helped tremendously.
I was smelling a sweet smeel for a month until I discovered that my neighbour grows weed. I was going mad because that seriously never crossed my mind cause he was never the type to smoke. And thought I am imagining stuff. Once I knew that, it was just a minor nuisance.
So the fact that this treatment of accepting the voices helps is easy to believe for me.