Does your son's college have a student disability services? He should register with them and they can help him with housing, scheduling, talking to professors, and any other adjustments.
I think you need to find a caring and competent GI. Why was Humira tried before 6MP and Remicade? 6MP can take a few months to start working and Remicade can take 4-5 infusions to start working. Humira is usually the last drug before surgery. If Humira has stopped working, you may want to get a consult with a surgeon; surgery is no easy task but it has over a 90% success rate.
Female, Age 20
9 Asacol, Rowasa, 1000 mg Canasa, Proctofoam, Rifaximin 2/day
Digestive Advantage (Crohn's & Colitis), 1 Florastor, 50 mg 6MP, 1 Primadophilus reuteri, Remicade (5 infusions), 2.4 g Lialda, Forvia, 6 Colazal, 1 Anucort, Culturelle, Fish Oil, Calcium/Vit D supplement, 10 mg Prozac, VSL #3