I think the key to help with flare ups is to monitor his food, a raw diet might work well, and to keep his stress level down. You can try Feliway or Comfort Zone diffusers in your home to help decrease his stress. Unfortunately, I don't know anything about pancreatitis, but I have a friend whose cat has it and it took a couple of months to get her kitty eating well again and on the road to better health.