Aromatherapy Herbal Heat and Cold Basic Pack helps soothe stress and muscle pain when used hot. Great for headaches and migraines, back pain, stress and tension in shoulders, neck, and bath. Works well for stomach, lower back, knees and wrist 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.