Does Toothpaste Remove a Zit?

While toothpaste is helpful in drying out a zit, the fluoride in it can actually burn your skin. There are better OTC options for zapping a zit without the potential burn. For a much safer paste that will help resolve a whitehead, try the home remedy of mixing a little cornstarch and water and dabbing it on overnight, says New York City dermatologist Dr. Francesca J. Fusco.