Stubborn proctitis- Why am I relapsing?

For a month now I have been suffering from a proctitis flare up. At the beginning, my GI prescribed 2 steroid enemas and a pentasa enema. For nearly two weeks, symptoms started to subside. But after that I started to have diarrhea and could not insert the enema due to irritation. After that I saw my GI, he reduced the enemas to 2 only, upped pentasa tablets to 4g and kept entocort at 3mg. Two days later my intestinal pain (which I got rid of for 3 months) returned. I upped the entocort to 6mg along with the 4g pentasa. Things became worse. The severe stabbing rectal pain returned again. I can't sit down. If you have stubborn proctitis that is relapsing what do you do? What more advanced therapies are there for proctitis? I used to suffer from proctitis flare ups while I was on pred, methotrexate and azathioprine. Any suggestions?
Your replies will be highly appreciated.

i have proctitis, 'severe' and 'stubborn.' It's usually quite difficult for me. I tried a number of immuno-suppressants (salazopyrin, methotrexate, imuran) and i am currently on 6mp at the highest dose for my weight. You might have some options in another immuno-suppressant. I also take mesalazine orally, daily.
When i feel/sense a flare, i jump on the topicals, pentasa suppository or salofalk enemas. These can sometimes seem to be of no help, but keep putting them in, they can be hard to retain on an inflamed bowel, even when empty. It's my understanding that the biologics work better for crohns than uc.
Other things which might have sent me into remission are, probiotics (dairy free, the type u keep in the fridge or vsl#3), vit d supplement, eliminating grain, dairy, sugar. Eating fermented foods often, sauerkraut, seeing a chiro and finishing my showers in cold water from chin down. Also, had a course of acupuncture.
all the best.