Sorry to say she didn't make it, thank you for your suggestions. I called the vet but they didn't have an exotic vet on call today. I'd rinsed her off and cleaned all the ants off, her wounds weren't too bad, but I think she must have been stung a lot. She didn't move much and by this evening we could barely tell she was breathing.
I don't know what kind of ant it is but they are tiny (and had no trouble getting through a fine mesh screen) and seem more attracted to fats and meat than sugars. We've been fighting ants since I moved in this place, but they've always been in the kitchen. We've hesitated to use raid because of our herps, but I guess it might have saved her life-though this colony showed up out of nowhere. This morning was the first time we saw any in this room. The ants found a tub of mealworms and killed all of the mealworms and were going after the meal as well. I'm not sure what attracted them to her tank in particular since we have quite a motley collection, including another leopard gecko that was right next to hers, and her tank had been cleaned recently. They hadn't discovered anyone else, but to be safe we moved tanks out till we are sure the ants are gone.