You can do this at home or you can also have it performed by a professional in a salon. Hot waxing can be messy and painful and may leave some hairs behind because they can break off. Infection is one side effect to watch for. If the wax is too hot, you may get a burn. You should not use this method if you also use certain types of prescription puff it. Still, many women use this hair removal method in the bikini area and for hair on the upper lip.