Toe nail ingrown. Earliest convenience.

The nail grows inside the skin, and we are unable to cut the same. After a number of treatments, there is no permanent treatment done. They just remove the nail,and after a while it again starts to grow on the inside. Is there a proper permanent treatment like removal/burning of nail root or otherwise. The nail grows inside the skin and also catched fungus infection at times. The area becomes so sensitive that even the slightest pressure leads it to bleeding and extreme pain. We had recently been through the surgery where the doctor removed half of the nail vertically, including the ingrown part 0f the nail. But again, in a few weeks the nail might start to grown on the inside again. Kindly revert and guide at your earliest convenience.