Is this right for me? Dr. Scholl's Pain Relief Orthotics (P.R.O.) Ballof Foot is designed for people who suffer from ball of foot pain as a result of constant and excessive pressure on the area. How does it work? The insert treats your pain at its source. It is designed to lift and separate the long bones of the arch transferring pressure away from the ball of foot area. Less pressure, less pain. Dr. Scholl's Shock Guard: Distributes pressure with every step; prevents impact from aggrivating ball of foot area. Clinically proven pain relief.