If she's on Creon, then that is a pancreatic enzyme replacement therapy. I don't know for sure, but it may be that she will need to stay on it. That all depends on what is wrong with her pancreas.
If she is unable to produce that enzyme naturally, and that is a long-term thing, then I suppose she will need to stay on it.
But please consult your vet. It is perfectly rational to keep in touch with the vet when a dog is on ANY treatment, if you have any concerns or questions.
Also, I sent you a private message just now.