Abstract: Disclosed is a device for magnetic action on living bodies to perform physiotherapy or stimulating effects on the tissues and internal organs of a human being or an animal to eliminate pain syndromes, stimulate the processes of vital activity and regeneration, and accelerate tissue recovery after invasive effects and injuries. The device comprises an oscillator connected to an inductor including a bifilar coil made as a flat disk. Two coil windings formed as concentrically arranged spirals of adjacent wires of different windings are placed on a dielectric substrate. When attached to the skin surface, the device allows to purposefully target pathogenic areas and organs located at 3-6 cm under the surface, while practically not affecting the tissues located near that surface. Suitable for clinical or home application, the device can be used for relieving pain of various etiologies, treating menstrual syndrome, hemorrhoids, joint diseases, healing injuries, and stimulating cell proliferation.