A foot or a hand device for use in the treatment of edema and neuropathy, wherein the treatment area is a foot or a hand, wherein the device comprises: a case formed in a hollow container body; a light irradiation pattern selection button provided to one surface of the case and configured to output a light irradiation pattern selection signal for selecting any one of light irradiation patterns, which is divided into continuous irradiation for continuously irradiating colored light for a set time or discontinuous irradiation for discontinuously irradiating the colored light for a set time; a therapy operation button provided to one surface of the case and outputting a therapy operation signal such that colored light is irradiated for a predetermined time period whenever the therapy operation button is pressed; a plurality of colored light irradiators including light sources for emitting the colored light of a visible light wavelength range, and wherein the plurality of colored light irradiators are configured to be attached to the edema and neuropathy treatment area of the foot or the hand; a power supply flat cable connected to each of the plurality of colored light irradiators by a plurality of wires, which are divided at one end of the power supply flat cable and integrated at the other end thereof; a power supply terminal provided one surface of the case and connected to the power connection terminal of the power supply flat cable; a microprocessor incorporated in the case and configured to output a therapy start signal whenever the therapy operation signal is inputted after the inputting of the light irradiation pattern selection signal and a therapy end signal after a predetermined time from the outputting of the therapy start signal; a therapy signal generator configured to output a therapy signal, if the therapy start signal is inputted, for emitting the colored light of the visible light wavelength range so as to turn on the light sources of the colored light irradiators such that edema and neuropathy can be treated, and stopping outputting the therapy signal if the therapy end signal is inputted; and a battery for supplying power of the light irradiation pattern selection button, the therapy operation button, the colored light irradiator, the microprocessor and the therapy signal generator. a case formed in a hollow container body; a light irradiation pattern selection button provided to one surface of the case and configured to output a light irradiation pattern selection signal for selecting any one of light irradiation patterns, which is divided into continuous irradiation for continuously irradiating colored light for a set time or discontinuous irradiation for discontinuously irradiating the colored light for a set time; a therapy operation button provided to one surface of the case and outputting a therapy operation signal such that colored light is irradiated for a predetermined time period whenever the therapy operation button is pressed; a plurality of colored light irradiators including light sources for emitting the colored light of a visible light wavelength range, and wherein the plurality of colored light irradiators are configured to be attached to the edema and neuropathy treatment area of the foot or the hand; a power supply flat cable connected to each of the plurality of colored light irradiators by a plurality of wires, which are divided at one end of the power supply flat cable and integrated at the other end thereof; a power supply terminal provided one surface of the case and connected to the power connection terminal of the power supply flat cable; a microprocessor incorporated in the case and configured to output a therapy start signal whenever the therapy operation signal is inputted after the inputting of the light irradiation pattern selection signal and a therapy end signal after a predetermined time from the outputting of the therapy start signal; a therapy signal generator configured to output a therapy signal, if the therapy start signal is inputted, for emitting the colored light of the visible light wavelength range so as to turn on the light sources of the colored light irradiators such that edema and neuropathy can be treated, and stopping outputting the therapy signal if the therapy end signal is inputted; and a battery for supplying power of the light irradiation pattern selection button, the therapy operation button, the colored light irradiator, the microprocessor and the therapy signal generator.