Every time I get an ask involving a stain where my answer is “rubbing alcohol” (ballpoint pen, hair dye, etc.), someone always pipes in that you should use hairspray instead. Here’s the thing: hairspray works on stains because of the alcohol content in it. However, it also has a lot of added ingredients, like the polymers or gums that make it sticky, and fragrance, and sometimes silicone for shine and water-resistance. Those added ingredients can leave behind their own residues, and can interfere with stain lifting.
So, pick up a bottle of rubbing alcohol. It’s a buck or two. Comes in handy.