Well, she's not home yet. From the research I've done instead, Oxyclean sounds like your best bet, though.

Also, there is some suggestion that you can use your detergent itself as a booster for helping to get the stain out (like a stick or a spray). You dilute it in a bucket (or sink) of water and soak the the stain in it for a while, half an hour or so. Then take it out and put it in with the rest of the laundry.

I might try soaking it in Oxyclean first, then rinse, and then use this method.

If you don't have Oxyclean, hydrogen peroxide is a good substitute, as Oxyclean is hydrogen peroxide with other things added to it.