Cold Laser Therapy a.k.a. Low Level Laser Therapy

Cold Laser Therapy or Low Level Laser Therapy (LLLT) is a treatment that utilizes specific wavelengths of light to interact with tissue and is thought to help accelerate the healing process. It can be used on patients who suffer from a variety of acute and chronic conditions in order to help eliminate pain, swelling, reduce spasms and increase functionality.

http://www.spine-health.com/treatment/pain-management/cold-laser-therapy-pain-management-treatment