ThermoActive ThermoTherapy is the use of cold or heat, enhanced by compression. To provide therapeutic relief, ThermoTherapy must cool soft tissue to a low of 45˚F, or warm it to … ThermoTherapy is the use of cold or heat, enhanced by compression. To provide therapeutic relief, ThermoTherapy must cool soft tissue to a low of 45˚F, or warm it to …