A device for foot therapy has a central, generally spherical dome with a rim about a generally circular, generally planar base of the dome. Preferably, the dome is resilient to foot pressure. A system of foot therapy including the device supports the device on its base and presses a selected portion of the bottom of a foot against the dome. Preferably, the base of the dome is supported on a floor and the selected portion of the foot is pressed against the dome from a standing or chair-sitting position.