Is switching GI's an option? It is a shame she has to suffer like that waiting for her appt. My GI always tells me not to suffer waiting for an appointment, that if I am doing badly just call and she will prescribe whatever is needed.
When I am not in a flare, I can eat anything. when I am in a flare, certain foods bother me. I discovered that coffee, black tea and dairy are huge no-no's during a flare. Best thing I ever did besides meds was keep a food and symptom diary to figure out what was worsening my already inflamed system.
I know the rectal suspension enemas are hard to get used to when you are young, but i have found that they are indispensible during a flare.
good luck!