Entocort did not affect my daughter's blood glucose until she had been on it for five months, after which her blood glucose rose into the 90s (high end of normal range) while she was still on 6 mg Entocort.
After a total of nine months at 6 mg, blood glucose reached 100, just over the normal range. However, the effect was temporary. Within a month of tapering down to just one pill of Entocort, her blood glucose fell to the low 80s, which is the optimal range.
She has been on Entocort for over a year, in full remission (no symptoms whatsoever), so I hope it works as well for you as it did for her. It can take a few weeks to kick in.