A DC POWER supply 1 is connected with the DC-type high voltage generator 2 that boosts the POWER supply. A negative output terminal 3 and a positive output terminal 6 of the generator 2 are respectively connected to a cathode electrode 5 and an anode electrode 7. A dielectric sheet 4 with appropriate relative permittivity and certain range of volume resistivity is closely attached ON the cathode electrode surface opposed to the anode electrode. The cathode electrode 5 together with the dielectric sheet 4 constitutes a DC-type dielectric barrier electrode 9. The POWER supply 1 and the generator 2 are disposed ON an upper surface of a belt-type attachment 15, and the discharge electrode 9 and the anode electrode 7 are disposed ON the lower surface thereof. The electrodes 9 and 7 become opposed to each other upon wrapping the attachment 15 around the affected part of a subject.
