Cold application: Acute inflammation, Bruising & swelling, Insect bites, Headache & Migraine, Nosebleeds, Tooth & jaw pain, Tennis elbow, Sprains & Strains • Warm application: Chronic pain, Rheumatic complaints, Tension & back pain, Sciatica & lumbago, Muscle soreness, Menstrual. Cold compresses applied to the freezer, for use in hot hot water or in the microwave to be set. Compresses can be reused at any time. Due to the different sizes can treat almost all parts of the body effortlessly.