Highlighter pens are useful for making passages in documents, books, and other text stand out. Unfortunately, highlighter ink stains can be hard to remove from clothing and other fabrics if not addressed immediately. Fortunately, there are several methods for getting highlighter out of fabric including applying rubbing alcohol, vinegar, hand sanitizer, hair spray, or laundry detergent directly to the stain. If you have an old highlighter stain, you can also soak the garment in salt water overnight before washing it.
Rubbing alcohol is a great stain remover that can get highlighter out of fabric quickly and easily. Before you use rubbing alcohol, however, make sure to do a quick test on the inside seam or other hidden part of the garment to ensure that the alcohol doesn't bleach the color out of the fabric.
Another great way to get highlighter out of fabric is to soak the stained area in a mixture of equal parts vinegar and water. This method is particularly effective for older stains and should be used as a pre-treatment before you attempt to wash the clothing.
Finally, you can also try using a foam block such as the Mr Clean Magic Eraser to get highlighter out of fabric. These handy little cleaning tools are designed to lift a wide range of stains from various materials and work best when they're damp. The melamine foam lifts the highlighter ink from the surface of the fabric while providing gentle abrasion.