Abstract: Photo illumination of sites along a nerve supplying a painful region is conducted one at a time until a thermal image of that region or one related to it shows a significant change in temperature, at which time the treatment is terminated. If it is an extremity (hand or foot) that is has pain symptoms, one extremity is treated by exposing its nerve sites to photo illumination while the other extremity is observed by a thermograph instrument. Use of the thermal image as a feedback technique allows the treatment to be terminated as soon as the favorable temperature change takes place.

Abstract: Photo illumination of sites along a nerve supplying a painful region is conducted one at a time until a thermal image of that region or one related to it shows a significant change in temperature, at which time the treatment is terminated. If it is an extremity (hand or foot) that is has pain symptoms, one extremity is treated by exposing its nerve sites to photo illumination while the other extremity is observed by a thermograph instrument. Use of the thermal image as a feedback technique allows the treatment to be terminated as soon as the favorable temperature change takes place.