Side effects from Treatments for Crohn's

Sorry for just jumping in here.  I was just wondering if anyone has went through, going through or know someone who has any doings what so ever with Humira, Remicade or the other choice was something like 6 pill or 6 something other.  It's my mom who has crohn's and I'm so scared!  They said her crohn's is really bad and these are her choices.  All of them have really bad side effects, which I know alot of medications do, but one of these can cause lymphoma(sp) cancer, pancreatitis(sp) and all sorts of things.  I was just wondering if anyone has anything positive to say about these treatments.  I'm really looking for some encouraging words right now.  She's having so many flare ups, already had to have surgery 6 yrs ago where they removed 16 inches of her lower intestines.  I don't want to lose my mother to this incurable disease. Please help me.  Thank you!!