Low-level laser therapy (LLLT) is a drug-free, surgery-free, and non-invasive means of treating inflammatory and painful conditions in dogs and cats. It works at the cellular level to increase blood flow, decrease inflammation and speed up healing. Virtually any disease process that involves inflammation can be helped with laser therapy, including chronic and temporary problems. One of the most common applications of laser therapy in veterinary medicine is musculoskeletal disease and injury. The laser is effective in helping injured muscles heal more quickly, as well as improving the function of muscles that have been strained because of arthritis, hip dysplasia or other injury.