Assuming its synthetic fiber I would try in this order: Try to extract with cold water first, ( this will help with removing bulk of the contaminate) You may need to water claw the spot to prevent wick back if there was an entire 32 oz spilled.
Then prespray and dwell with.. if Grease Eraser is what you have us it. Rinse with water and get as dry as possible, you'll probably see the blue remaining. And if memory serves, its a synthetic Dye so mix up your RED RELief, get a wet towel and put your iron on it for a good 30 to 45 seconds before you check it... as long as you have the towel wet enough. then apply pressure for 10 seconds and check every 10 seconds. If no visible change after the first 45 seconds I would stop, rinse, apply fresh stain magic, cover in seran wrap (tape it down with painters tape) And leave it sit, return the next day and it should be gone.
If its a natural fiber... ask the customer if you would like the entire piece stained the rest of the way... :| You can do stuff with natural fibers but it takes more specielized chemistry, training and time than most are willing to spend. Now if it was a good rug, or portable piece of furntirue/cushion... WE would take it back to our shop to work on so time was working for us. But before you do anything... get her/the customer to sign off regardless of fiber. Its her MESS, you are trying to correct her stain.