Massage therapist suggested it. The mustard bath feels like it drains my energy a bit (and my body's ability to spasm)...kinda like I feel after acupuncture. A quick shower afterwards and I'm ready for bed. Its not a cure by any means and could just be placebo effect I'm feeling. I only use it once or twice a week at the most as I'd rather stand in the shower for 30 minutes than lay in a bath.