A laser is a beam of light in which high energies can be concentrated. Laser light has unique physical properties that other types of light do not have. These are coherence and monochromaticity. These are what make laser light so effective compared to other kinds of light in the field of pain reduction and recovery. Laser treatment (also known as phototherapy and low-level laser therapy) involves the application of low-power coherent light to injuries to accelerate recovery and reduce pain. Low-level laser technology has been found to offer superior pain-relieving effects compared to other electrotherapeutic modalities such as ultrasound, especially in dealing with chronic problems and in the early stages of acute injuries. Low level laser technology is a non-invasive, drug-free modality.
