A method for treating an ingrown toenail by providing a smooth surface on the lateral edge of the damaged/sharpened nail and isolating the lateral nail bed, i.e., the cuticle, from the sharpened nail, thereby aborting the cycle of mutual damage that occurs when an ingrown toenail causes inflammation on the flesh portion at the side or under the toenail which in turn then further dissolves the nail edge and sharpen it, which in turn then causes further damage and inflammation. By ceasing this cycle, the sufferer of the ingrown toenail feels immediate pain relief while the toenail heals itself by means of isolation of the cuticle from the sharpened portion of the nail.