Any other females in there are already pollinated. Pluck any other pollen sacks you can find, finish growing it out - you can still get some good bud, it'll just be seedy.
spray down your room with a light bleach/water mix to kill off any pollen. hit the walls, ceilings floors,ect. wipe all your fixtures and everything else thats in there with a rag with same solution. thats sucks, it happens. good luck bro!