Laser therapies are treatments that use focused light. Unlike most light sources, light from a laser (which stands for light amplification by stimulated emission of radiation) is tuned to specific wavelengths. This allows it to be focused into powerful beams.
This therapy is found to be helpful in treating pain and facilitating soft tissue healing. Loco-level laser therapy is effective in releasing serotonin and endorphins. This could be responsible for pain relief.