Ingrown toenails occur when the nail curves round and the sides penetrate into the skin, causing pain, redness and swelling. The condition is more common in teenage boys and the elderly, and is most likely to affect the big toe.
Common causes of ingrown nails are trauma, ill-fitting footwear, feet which are more prone to sweating and incorrect nail cutting. In order to treat ingrown toenails, the nail splinter should be carefully removed from the skin. The edge of the nail should be smoothed, so that the nail no longer presses on the surrounding skin. Inflamed tissues can become infected, in which case antibiotics may be required. In more severe cases the nail may be either partially or completely removed.