I was painting my daughters bedroom yellow. it was going over white walls (& i am inexperienced in painting) i did not use primer. now there are two lines on her wall where she drew a line with pen & it is coming through the yellow paint (when the paint was wet it looked like it covered it but when it dried it came through). I have tried to remove the pen but it is not coming off. is there anything i can do since i already painted the whole room?
have you tried the mr clean magic erasers? they get off everything!! you can try that or try putting some killz on the pen marks and then repaint them.
Prime over the pen marks with some KILZ primer, let dry and paint the area again (just in the areas you need it!)