Ingrown toenails are the result of a nail growing into the skin that surrounds it. They may be caused by improper trimming, inherited nail deformities, injuries, fungal infections, or pressure. Pain is usually the first symptom of an ingrown nail. It may also lead to infection which causes redness and drainage.
If the nail is not infected, the doctor may trim the corner to relieve the symptoms. He may also need to remove the nails side permanently by removing the nail root so it will not grow back. The procedure is performed in the office and requires a local anesthetic injection. More severe infections may require antibiotics.