Add dish soap to a wet towel. Scrub the ink with the wet, soapy towel as soon as the stain occurs. This may not remove all the ink, but it will reduce the severity of the stain. Be careful not to spread the ink; work from the outside of the stain toward the center.
Soak a cotton ball in rubbing alcohol, then squeeze out the excess. Dab the ink stain with the cotton ball.
Continue to gently rub the stain with rubbing alcohol until the ink fades completely.
Wipe the affected area with a clean, damp towel.