Ingrown nails     

Are nails whose corners or sides dig painfully into the soft tissue of nail grooves, often leading to irritation, redness, and swelling. Usually, toenails grow straight out. Sometimes, one or both corners or sides curve and grow into the flesh. The big toe is the most common location for this condition, but other toes can also become affected. Causes of ingrown nails can be due to improperly trimmed nails, shoe pressure; crowding of toes, repeated trauma to the feet from normal activities. Signs and symptoms of an ingrown nail can include pain, redness and swelling drainage, odor or prominent skin tissue (proud flesh).