FIELD: medicine.SUBSTANCE: invention refers to medical equipment, namely to a method for periodic action of human skin with hot and cold water. Inlet hot and cold water, divided by pipelines into two flows, one of which, for example, hot, passing through its pipeline with open outlet hole, changes temperature due to its mixing with cold water supplied through side with adjustable cross-section area of hole. Each cross-section corresponds to definite value of hot water mix temperature. Conversely, cold flow, passing through its pipeline with open inlet hole, changes temperature due to its mixing with hot water supplied through side with adjustable cross-section area of hole. Each cross-section corresponds to a certain value of cold water mixture temperature. Hot and cold water controlled at preset temperature at outlet of the device by one control element can be shut off or flow only cold or hot or expire either cold or hot with desired frequency of user. Change of required temperature of both hot and cold water is performed by means of regulators with right-hand thread with the same thread pitch, hot and cold water alternately flows through the inlet holes of the couplings through alternatively located at the holes located at an angle and revolving in any direction or manually by the piston. Frequency of alternating outflow of cold and hot water through outlet holes of couplings depends on speed of rotation of the piston located in the cylinder connecting couplings. At stop of rotation in mismatch position of holes of piston and couplings, hot and cold water outlet is blocked. When the rotation is stopped in the mismatch position of the hole with hot water, cold water flows out, and vice versa, when mismatching the hole with cold water, hot water flows out.EFFECT: technical result is periodical spout of cold and hot water with specified temperature characteristics.1 cl, 2 dwg