Methods for treating a patient using time varying magnetic field are described. The treatment methods combine various approaches for aesthetic treatment. The methods are focused on enhancing a visual appearance of the patient. In one embodiment, the method is performed by switching on a device which includes a connection to an energy source, an energy storage device, a switching device and a magnetic field generating device including a core, and applying a time-varying field with a maximal value of magnetic flux density derivative of at least 300 T/s to a muscle of the patient. The diameter of the core is up to 80% of an outer diameter of the magnetic field generating device.