CryoDerm products relieve pain by breaking the Pain-Spasm Cycle. This is a physiological cycle in which sensations and cognitions of pain from injury cause spasms in the nearby muscles. The spasm causes several other reactions in the body, which in turn create more feelings of pain. This cycle continues indefinitely unless broken. The following diagrams explain how the Pain-Spasm cycle occurs without intervention, and how the cycle is broken using CryoDerm.