A therapeutic device which engages the sole of the foot of the user includes a lower base and an ellipsoidal upper surface having a plurality of nubs or spikes radially extending outwardly from the ellipsoid. The base and the upper ellipsoidal surface have different hardnesses, the upper surface being softer than the lower surface. The upper surface is partially compressible when a user stands thereon, and exerts an upward force on the sole of the user.
