Well, I don't know if it would really work, but it might dislodge whatever was stuck in the back of her throat. Of course, if you're really scared, you may have to rescue them. We had to do that with a newt who ate a glass shrimp that was too big for them. Newts are not handleable.
You have to pick it up, open its mouth by hand, and take out the obstruction. I remember reading something like it in care for cats and dogs as well, if they choke on a bone. Of course, a Glider will bite and squirm fiercely, but better it have it's feelings hurt than
be hurt ...