I have a lot of pain issues and the doctors won't give me enough pain meds to last me. Hot showers help. I sit on a icechest/cooler in the shower stall (no tub) and let the hot water hit me. I do this several times a day to ease the pain. I am disabled so I can't afford to buy one of those showerheads right now. I have been really wanting a nice hand held showerhead like this one and one of these.
So, then I could attach that thing to the stall lower down and put the hand held showerhead in it right above my back and just sit there and let it soothe the pain for awhile.
It's a very nice thing you are doing regardless of who you pick. Peace.