hi biobased. i did water therapy in a pool for a few months, but it was not warm enough and they wouldn't make it any warmer so i had to stop. i had cold rsd and i couldn't take the water being that cold. it caused me more pain. that was a few years ago. now i have cold and hot rsd. they fluctuate all over my body so i try to do home exercises that my pt prescribed (simple stretches and short walks). they help manage my pain a little. maybe your pt can do the same. i hope you find some relief from your pain soon. soft hugs.