It took less than 6 months for my fistulas/abscess problems to go away with Remicade. I love the stuff. But, I understand that cancer is a scary possibility.
Everyone obviously has to decide for themselves, but I personally would go for the Remicade. Abscess and Fistula problems detract from your everyday quality of life. Being a crohnie seems to come with a lot of increased risks, let alone the others that you have stacked against you. But what's the point if you spend everyday worried about what's draining where? ((shrug)) It's a very personal decision though. I wish you the best in your deliberations.