Thermotherapy: place the cushion flat in the microwave oven and heat for 15 seconds, remove it and knead to distribute the heat. Watch which level is indicated in red color after kneading it. If necessary to increase the temperature, iron it for a few seconds in the microwave. The cushion should not be immersed in hot water to be warmed up.
Cryotherapy: place the cushion in the refrigerator or freezer so that it is always ready for use. Apply for a maximum of 20 minutes then wait another 20 minutes before applying the cushion again.
The cushion must always be inserted in its protective cover to avoid the risk of burns.