After suffering a knee injury at as a teenager, Sara Dalton had to learn to cope with the chronic pain from the injury. As an adult arthritis contributed to the problem. After trying nearly everything available to deal with the pain from injections to physical therapy her doctors advised her she would need knee replacement surgery. She found a different option called Coolief, which uses radio signals that are cooled which deaden the nerve. Although it isn’t permanent, it provides much needed pain relief. Sara was able to get back to the activity level she wanted.