Cold laser is a modality used in office for the treatment of musculoskeletal pain.
"Class IV Cold laser, Low-level lasers, also known as 'cold lasers' and non-thermal lasers, see use of red-beam or near-infrared lasers with a wavelength between 600 and 1000 nm and Watts from 5-500 milliwatts. (In contrast, lasers used in surgery typically use 300 Watts.) When applied to the skin, these lasers produce no sensation and do not burn the skin. Because of the low absorption by human skin, it is hypothesized that the laser light can penetrate deeply into the tissues where it has a photobiostimulative effect." California Chronic Pain Medical Treatment Guidelines, July 2016.