Suggestions for pancreatitis flare up (happening right now)?

My daughter suffers from recurrent acute pancreatitis. She started throwing up a little tonight (this is what always happens with her), and I was wondering what I could do if anything to help calm her pancreas down so we don't have to take her to the hospital again. Can she still have water or does she need to be on complete bowel rest? Will her pancreatic enzymes do any good at this point? She is not even two yet so it is very hard not to feed her when this happens because she doesn't understand. Please help, and please only answer if you know what you are talking about.