properly wiping off Remove zit

[catshem]

I just got my remove zit in the mail and applied it to a stain that happened under her head near the neck joint. The instructions recomend using Formula 911 to wipe the Remove Zit off... but I didn't buy that as I didn't know that when I ordered... and I don't know if I want to order that as well or see if there's some "home remedy" to get the stuff off when it's done?