Pain control, digestive rest and hydration are very important,
and usually antibiotics are needed as well. If your dog can keep from
vomiting the chicken
and can keep down water, that's a very good sign.
Going forward, you'll need to know that once pancreatitis strikes, it can easily turn into a chronic condition. That's why a very low-fat diet is so very important. You don't want to feed anything that would cause another acute (and potentially fatal) attack.