Have you been on Entocort long? Taking the full dose of three pills?
Perhaps it is not the Entocort, but instead a flare brought on by tapering prednisone...any time you go below 20 mg on prednisone, and then 10 mg, and the below 5 mg - each time, there is the risk of a resurgence of symptoms.
The Entocort is far safer than pred so if it works, it is preferable to use it - it can take a couple of weeks, or more, to feel the full effect of Entocort.