In fact, Shays says up to 35 percent of her clients every week are on their periods. As long as you’re wearing a clean tampon and there’s no blood in the area (again, check that area before your appointment and make use of those wet wipes!), most waxers have no problem giving you a wax during your period. But keep in mind: It will hurt more than usual, because the extra hormones floating around your body during your cycle make skin more sensitive.