Use the Herbal Concepts Neck and Shoulder to apply a combination of herbal essence, temperature and pressure to the specific zone in the body to stimulate the flow of natural healing energy - restoring the perfect balanced state of relaxation. The Herbal Concepts Neck and Shoulder can be used for hot or cold therapy, using a blend of 12 aromatic herbs to soothe and relax tired, sore muscles. Heat - Warm Herbal Concepts Neck and Shoulder in the microwave for 1 minute on high. Increase in 30 second increments to desired temperature. Test to ensure temperature is ideal before use. Do not overheat. Cold - Place Herbal Concepts Natural Neck and Shoulder in a resealable plastic bag in the freezer for 2 hours. Clean - Wipe with damp cloth. Store - Keep Herbal Concepts in dry cool place in a resealable plastic bag to increase longevity.