There are a few things you can do if your basin, bathtub, or toilet is jammed with wax. Bring water to a boil and then spill it down the drain. The water may take some time to flow fully. Repeat as needed to ensure that the wax is flushed from the pipes. As the clog melts, you can also run the hot tap to flush the pipes. Petroleum-based chemicals should not be poured down the drain because they can melt plastic pipes and potentially start a fire. To clear the obstruction, do not use a drain unclogging product. Do not try to clear the wax blockage from the drain with a plunger. When attempting to clear a wax clog, avoid using an air gun.