The present invention provides a device for the transcutaneous electrical stimulation of the trigeminal nerve. The device comprises an elongated symmetrical support comprising at least one electrode pair, said support being suitable to be applied on the forehead of a person's face in the supraorbital region thereby covering the afferent paths of the supratrochlear and supraorbital nerves of the ophthalmic branch of the trigeminal nerve; each electrode pair being in contact with a self-adhesive conductive gel, said conductive gel covering at least partially one surface of the support for attaching said support to the forehead and being applied to two lateral zones with the exception of an insulating central zone, whereby each lateral zone comprises one electrode of the electrode pair; at least one electric circuit for supplying to the electrode pair electric pulses having a predefined intensity, and at least one measurement means for measuring the intensity of the supplied pulses, said measurement means being connected to the electric circuit.