How to treat fatty pancrease (pancrelipase)?

Depends on cause: If found incidentally it may not require intervention. If because of cystic fibrosis, chronic pancreatitis, obesity, cushing's etc therapy should be directed at the underlying cause. Talk to your doc.

Usually no need: Dr. Kim is correct. As an autopsy pathologist, i see this frequently and unless there is obvious disease already, it's a normal variant. Different people deposit fat in different places (look around you!) and many people store some in their pancreas.