An electrotherapy device having an array of post electrodes that includes a body housing having a top surface; a plurality of apertures formed through the top surface of the body housing; a support member positioned within the body housing; and a plurality of post electrodes extending from the support member, through the apertures formed through the top surface of the body housing to form an array of post electrodes, wherein each of the post electrodes is formed of substantially rigid, electrically conductive material, wherein each post electrode terminates with a relatively blunt or rounded surface, and wherein each post electrode is electrically coupled to each other post electrode.