Cold therapy has long been the preferred treatment for emergencies like insect bites or bee stings, household burns, bruises, cuts or scrapes. Toothache or pain and swelling from dental treatments or surgery are often treated with cold therapy. Headache, including sinus pain or migraine can be relieved or minimized with the application of cold to the face or back of the neck. The lingering after-effect of sports injuries can often be reduced by the immediate application of cold to the affected area to reduce bruising, swelling, muscle spasm and inflammation. Tendon and/or joint problems such as TMJ, carpal tunnel, tendonitis, tennis elbow, rotator cuff (shoulder) pain or most types of knee pain (whether from torn cartilage, hyper-extension, arthritis or surgery) often respond well to cold therapy. Many types of muscle spasm, back pain, neck pain, arthritis pain - nearly any condition that involves pain, swelling or inflammation - may be relieved to a surprising extent by the simple application of cold therapy.