Your prednisone "treatments" sound more like what is used for something "acute" like poison ivy, and not for UC (which is chronic). You probably need to stay at 30 or 40 mg until you start to get better, unfortunately, maybe for several weeks. Ask your doctor to consult with a GI, they need some education. I hope you can find a new GI, don't worry about the records but get some helpful drugs started, like Asacol.
Also, try a better probiotic? That one is more for colon health for healthy people. You need a better, stronger one probably.
Try not to smoke too much!! Sorry you are suffering.
49 year old female attorney, diagnosed UC/pancolitis 1985, no surgery but much suffering.
Asacol/5ASA 6x400 mg maintenance for 20+ years; use prednisone & Rowasa for flares.
August 2008 sought care of naturopathic doctor. Food sensitivity test showed gluten, other intolerances; started diet without gluten, soy, dairy, tomato etc. Replete probiotic first, then Forte pills.
Achieved remission for the first time in many, many years!? Seemed so, but colonoscopy Oct. 6 proved not so, heavy inflammation in ascending colon & will be using Rowasa again. But I AM better.