Hi and welcome to Healthcaremagic. Thank you for your query. I am Dr. Rommstein, I understand your concerns and I will try to help you as much as I can. There are few possible causes and most common is postoperative pseudocyst formation or chronic pancreatitis. In most cases it can be regulated by medications which include insuline supplements and enzymes for digestion Also alcohol is forbidden in these cases and you should eat less fatty food, less sugar and more vegetables and boiled food. Also, avoid citotoxic medications. If there is no improvement then surgical therapy may be considered and include drainage procedures or pancreas resection. This is last option and you should consult your doctor about this. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.