For cold therapy
Simply store the compress in the refrigerator so that it is always ready for use. Insert the compress in the enclosed cover before application
For heat therapy
Heat up the compress in hot but not boiling water. You can also heat it up in the microwave (180 watt ) oven for three minutes at defrost setting. If it is still not hot enough, continue to microwave it for fifteen seconds at a time. Do not leave the compress unsupervised in the microwave. If the compress inflates, turn off the microwave immedaitely. Insert the compress in the enclosed cover before application.