Sufferers of arthritis, back pain, muscle aches, tension and stress, can now benefit from an innovative product that makes moist heat therapy safer and more effective. Simply heat MediBeads in the microwave as directed (1-2 minutes) and apply to the site of pain. Relief begins ...Sufferers of arthritis, back pain, muscle aches, tension and stress, can now benefit from an innovative product that makes moist heat therapy safer and more effective.