Abstract: A method of treating a toenail or fingernail for correcting an ingrown condition which comprises applying a material in flowing or liquid form across the nail at the base or proximal portion in a limited area having a normal radius of curvature, causing the material to harden and to become adhered to the nail and to serve as a form-retaining support, permitting the support to remain adhered to the nail as the nail grows over a period of time until the coated and supported portion extends beyond the end of the toe, and removing the portion of the nail having the coated material thereon, the nail remaining being partially or totally cured of the ingrown condition.