B.C.
Borrow or purchase a carpet cleaner or wet-vac that sucks out the lotion and whatever soap/detergent you have already put on the stain. Then treat with additional cleaning solution (soap/detergent/carpet cleaner, etc), brush it in, and then suck it up. I have a Bissell Little Green Machine, and the cleaning solution that comes with it really breaks down greasy things and the suction removes the residue. The suction is enough that it will pull most of the liquid out, so the rug will dry in a few hours.