Abstract
Pain relief by low power laser therapy is getting the focus of attention. Headache due to muscle contraction and stiff neck are well cured by YAG and Diode lasers. Half of the patients of vascular headache and trigeminal neuralgia are alleviated. Frozen shoulder is good indication of laser therapy. Back pain, lumbago and joint pain are to be treated by this therapy prior to other physical therapy. It was proved in the human beeing that the laser stimulation evokes the afferent impulses in microneurogram recordings. The thermographic studies during. the treatment indicated the circulatory changes are related to the therapeutic effects. Based upon those clinical and physiological data the mechanisms of pain relif by low power laser are discussed.
