A hammertoe splint cannot cure a hammertoe. The splint helps to loosen contracted soft tissue and may it reduce slightly. Most hammertoes have a contracture involving the bones and joints which are not affected by hammer toe splints.
With a hammertoe that is flexible, a hammertoe splint can maintain the toe in good position and prevent it from rubbing against a shoe and forming a corn. Putting a hammertoe splint on a toe that has a more rigid deformity will not be effective and can even make the toe more painful.
