I used salt water and kept blotting the stains out for ages, then I was on my hands and knees scrubbing with carpet shampoo, then I used the steam cleaner. There are still some faint stains there and i am convinced I can smell rotten egg in there but no one else can so I might be imagining it.
She did that and came out (it's in the playroom) and we went out for a few hours before coming home and seeing it. Little brat.