Aromatherapy Herbal Heat and Cold Small Basic Pack helps soothe stress and muscle pain when used hot. Great for concentrating on smaller areas of pain, minor headaches, stress and tension, swelling and inflamation. Works well for forehead, back of neck and head, knees, wrist and ankle area. Also works well as a cold compress to help relieve pain associated with sprains, swelling and inflammation, headaches and migraines, helps reduce fever and so much more.