My father is 74 and has a herniated disc in his back. This is giving him chronic back and leg pain. I heard that whirl pools might ease his pain. Can you give me any more information? Thank you. The use of hydrotherapy has been around for millennia and modern science has proven that hydrotherapy can relieve chronic back pain along with an expansive variety of aches, pains, and illnesses. Hydrotherapy equipment, such as whirlpools and hydrotherapy tubs, is used to relieve joint conditions and have been useful in physical therapy for cases of paralysis and stiffness of the extremities. I suggest using and/or purchasing a LoBoy whirlpool. They are perfect for geriatric patients and for people who have difficulty climbing into conventional tubs. Hope that helps.