Relux Compact Hot & Cold Therapeutic Pack Relux™ therapy hot & cold luxurious therapeutic pack Soothing, re-usable, compact hot and cold pack Soft cotton filled with all-natural material – provides long lasting heat therapy after just seconds in the microwave Provides heat therapy for aching muscles, joints, back pain, cramps, and promotes tissue healing by increasing circulation An all-natural alternative to hot water bottles Provides cold therapy to reduce pain and swelling after an injury, and may temporarily relieve headache and fever symptoms A soft, soothing alternative to ice packs Heat Therapy Applications Heat therapy increases blood circulation, and temporarily relieves discomforts caused by: Pain and soreness, Muscle cramps or spasms, Arthritis, Chronic pain or stiffness in the neck and back areas, Menstrual cramps, and Stress Cold Therapy Applications Cold therapy decreases blood circulation, reduces swelling and pain caused by inflammation, and temporarily relieves discomforts caused by: Joint or muscle injuries, Back or neck pain, Arthritis, Sinus and stress headaches and Sunburn Measures: 9 x 10 " (22.8 x 25.5 cm) See product packaging for usage instructions and caution advisory.