It comprises a Peltier cell with electrical supply means (2) for said Peltier cell, which is located between two conducting plates (3, 4), a first (3) cold conducting plate which will remain facing the patient's skin and a second heat conducting plate (4) in contact with cooling means (5) thereof, mean for measuring the temperature (12) of first conducting plate (3) with said head piece also being connected to an impeller pump and a heat exchanger located outside the head piece and in that first conducting plate (3) is coated with a low thermal conductivity material, and in that it comprises vibration means (7) connected to said first conducting plate (3) which vibrates while cold is transmitted to the patient's skin.