NO WATER NEEDED. PRODUCES ITS OWN MOISTURE!The Thermophore Hot Pack produces moist heat automatically.
Moisture is drawn from humidity in the air and retained in the outer flannel cover.
The hot pack produces moisture for 20-30 minutes; after that time, the flannel begins to dry out and the unit should be set aside to regain moisture from the air.
The body should be allowed to return to normal temperature and another treatment can be taken in 1-1/2 to 2 hours.
Use your hot pack at the first sign of muscle spasm or joint pain.
The treatment is especially useful to help temporarily relieve pain caused by muscle spasm or inflammation.