During your cold laser therapy treatment, a licensed physician will emit energy through a hand-held device that is pressed to the skin. The device will pulse against your skin while the light turns on and off. While the light is on, its rays will penetrate the skin to reach the tissue that is attached to the affected joint or bone. This tissue, which contains photo-activated molecules, absorbs the light energy given off by the laser to perform reparative cellular functions. The combination of lights causes a physiological reaction that helps regenerate cells to their original state. This procedure can be used with other chiropractic treatments to reduce inflammation, swelling, and pain in the bones and joints.