Regular heat patchescontains natural minerals which when exposed to air provide up to 8 hours of therapeutic heatfeaturesbull starts to heat up in 5 minutesbull non45medicated pain reliefhow does heat therapy helpheat therapy helps treat the underlying cause of back and muscle pain in two waysby increasing blood flow to the painful areaby relaxing tight sore musclesthis helps you to get active again as soon as possible w