Hot and cold therapy products are used to treat pain and inflammation in the body. Many of the products we carry can be heated and cooled, so they double as hot packs and ice packs. Heat therapy stimulates blood flow, making it ideal for reducing stiffness and relieving muscle cramps. Cold packs reduce blood flow to an area of the body, which relieves inflammation and swelling. Cold therapy is great for things like joint pain and sprains. A hot and cold compress is an ideal item to keep in a first aid kit.