Scholl corn shield gel plasters how are scholl corn shield gel plasters different corn shield gel plasters are advanced corn protection plasters utilising a revolutionary dual layer hydra guard technology 1 the hard outer shield protects and guards the corn from friction and rubbing 2 the soft gel island provides advanced cushioning and actively donates water to the site of the corn softening it aiding removal what are the benefits 100 natural corn treatment easy to apply suitable f