To remove ink stains from skin, try to absorb as much ink as possible using a dry cloth, and then wash the skin with soap and water. If the stain persists, rub shortening or lemon juice on it. For stubborn stains, use nail polish remover or rubbing alcohol.
Using soap and hot water, wash the stained area over several days until the stain gradually comes off. Avoid scrubbing the area roughly when washing. This method is particularly useful if the ink stain is present in a sensitive area. If the ink stain does not come off with regular soap, use exfoliating soap instead. For persistent stains, apply lemon juice over the area, and scrub it with a wet cloth. Alternatively, rub a bit of shortening over the stain with your fingertips, and then wipe off the ink using paper towels.
If natural ingredients do not remove an ink stain, use chemicals instead, provided the stained area is not a sensitive one. Rub a non-acetone-based nail polish remover over the ink stain using a ball of cotton, and gently wipe the stain using a soft cloth until it comes off. Alternatively, use rubbing alcohol, and repeat the cleaning process. Afterwards, rinse the area thoroughly with water, and then dry it off.