The best way to correct an infected ingrown toenail is to have a podiatric physician numb the toe with a local anesthetic injection and then have the part of the ingrown toenail taken out and allow the infection to clear. Using oral antibiotics is not necessary. It is true that the nail MIGHT grow out on its own but also more likely to still stick into the skin and cause further infection. Further, the excessive use of antibiotics cause antibiotic resistance so better to get rid of the source rather than use antibiotics.

Lowell Weil