Candle wax typically comes from paraffin, soy, beeswax, or blends. They all behave similarly on fabric: when warm, they spread; when cool, they harden and cling to fibers; and the oil component can leave a residue behind.
That’s why the best strategy isn’t “rub it out.” It’s controlled removal. You want to pull the wax from the fibers first, then deal with any lingering oily stain. If you combine those steps—scrubbing while wax is soft or cleaning before the wax is fully extracted—you risk driving wax deeper into the weave.
One practical rule: treat wax like a solid to be removed, not a stain to be blended in. Once the bulk is gone, stain removal becomes much easier.