Since she just ate I would leave her to digest for a day or two and not stress her out by handling her or trying to soak her. You don't want to risk a regurge on top of all of her other problems.
Since you assist fed and she took it can I assume that she eats f/t? If so I would offer her damp feeders to help with hydration, and you could also dust them with a bit of NutriBAC to help jump start her gut flora.