Please check out this informative website for parents with kids with Crohn's Disease: http://www.dragonpack.com/ibdsupport/parents/
You will find a lot of support there from parents of kids of all ages, many diagnosed as young as your son.
Best of luck to you and your son,
IslandMom
Mom of Son with Crohn's
(Son, 15, Dx at 11 years)