I did wonder about it briefly at one time, but dismissed it for myself. In my case, other chronic pain issues have proven sensory distraction to work better for me than deprivation. Stress reduction may have some merit, but a deprivation tank seemes a little impractical (unless you're Daredevil ) compared to other methods like meditation. I don't know if there would be any/enough residual effect to warrant the expense/inconvenience.

But if anyone has access and mean$, I wouldn't discourage trying it. For some people, any relief, for even an hour or two, can make a difference.

Doc