Just FYI and so you know it is not unusual, I was doing TONS of two steps forward, two steps back (oftentimes, one forward, two back etc) during the very gradual improvement, over 2 years, from my first massive flares to my 9+ year, completely med-free remission. Granted, that remissiosn is ancient history and my best remissions nowadays last months and are not even completely pred-free anymore, but I just wanted to point out that it can happen.
To get into that long remission, I had to learn to ignore the pred tapering docs recommended and go much slower, and be prepared to bump back up to whatever level prevented bleeding, baring in mind that it takes a few days to a week or two for a smaller pred increase to kick in vs a big one that can kick in within a couple days (but, once you have burnt yourself out on high pred doses, you just don't want to do again). Not that I would recommend pred to anyone.... but I just happen to be intolerant of all 5ASAs so it was that or lose my colon years ago I guess. However, I did get that long, long remission and it was 100 percent med-free, nothing to sneeze at.
Pancolitis dx'd 1986, full med-free remission 88-97
Flaring or simmering ever since
10 20 mg pred, 100 mg Imuran
Probiotics (mainly Primal Defense)
Turmeric/circumin, various vitamins/minerals,
Low-carb version of Specific Carb Diet