Hey Kathy,
The first thing I would suggest to just do a lot of reading on practically all things Crohn's related since you were only diagnosed recently. You can start on this forum, use links people post etc.
Corticosteroids such as entocort are normally used to control inflammation short term and if so normally in higher dosages and then tappered of to 0 within a few weeks or a couple of months if possible. In the old days, GI would prescribe them long term at lower dosages, but first that's not an effective way to treat Crohn's (you are fighting symptoms, not the problem) and secondly long term use of steroids can have quite serious side effects.
Normally today GIs put you on so called immunosuppressive drugs such as azathioprine or 6mp. They lower your immune system and can be used long term for most patients, but need to be monitored (regular blood tests) in order to avoid problems with the liver that can occur in rare cases.
Next to immunosuppresive, biologic drugs are used such as remicade. Some GIs these days advocate to use them for practically all patients to get them into remission, others want to try them only if immunosuppressives don't work.
Then there is 5-Aza which has been the standard therapy until the 90s but it only helps in certain cases of Crohn's (it is more effective in UC).
Having said all that, I don't want to bombard you with lots of information, the thing that I a, trying to say is that you should find a good GI that has specialized on Crohn's and can talk to you about long term management of Crohn's. Also look up posts and information on what people with Crohn's who have inflammation normally eat and what the no-nos are (the more neutral the better for the most part). Other things to think about would be vitamin therapy and things like regular sport (once your Crohn is under control to keep you healthy and in remission).
If you got more specific questions, just fire away!
