Try using a white eraser before coloring. That helps a little bit but if your markers are on the juicy side you still need to be careful. One trick I learned other than the one above is to try to color near the line with some dots with a little bit of pressure, then always "test" your marker on a piece of scrap to ensure there's no printer ink residue before moving away from the spots that are likely to smudge. This also tends to happen to me more because flesh colors are so light that you feel like you need to go heavier which makes the area wetter, so just lay down a little at a time.
Hope this helps.
Last edited by Leeann34; 01-09-2013 at 02:04 PM..
Reason: Mispelled words