PLEASE, I'm so sorry. I don't have much experience with using rectal meds, but I think the response really could happen that soon. The enemas are pretty much topical, just like a skin ointment, and when they're gone the effect goes away pretty quickly.
Short courses of Prednisone can induce a remission quickly and often this remission continues after the Pred is discontinued. Many of our members have excellent results from this strategy.
Most GI's will go to 6-MP or Imuran (azathioprine) next when the 5-ASA's and steroids won't achieve a lasting remission. This has some scary side effects listed and needs careful monitoring, but remember that most of the people who take it have minimal to no bad side effects.
There are also the newest sort of drugs, like Remicade and Humera. Others are in development, and I'm sure your GI's practice is involved in some of the clinical trials.
There will be an answer for her, sometimes it just takes a while to sort out what works best for each of us. In the meantime, she's benefitting enormously from her supportive family, so keep up your positive attitude.
I'll be sending positive thoughts for a quick remission for your daughter.
Moderate to severe left-sided UC (21 cm) diagnosed 2001.
Intolerant to Asacol and rectal mesalamine preparations.
On Prednisone then Entocort 2001-2006 with only short periods off.
Current meds are Colazal,
Azathioprine Remicade, Nature's Way Primadophilus Reuteri.
In remission since April, 2006. Remicade has been my wonder drug.