You could place her on a heating mat if you have one, not directly, cover with some towels, or warm some towels in the dryer and put her on that. Try to increase the humidity around her by using another towel soaked in hot water and wrung out and placed in a plastic bag. Or you could try running the hot water in your bathroom and closing the door to create steam. This warm moist envoronment should her her to relax.
Best wishes
Best wishes