i was diagnosed with crohns disease a year ago. i was put on entocort and imuran they worked very well. i came off them because i ran out and flared up within a week, (i was taking no tablets for about 9 days) i was put back on them ten days ago and still no effect. how long does it usuallt take entocort to work? my doctor will put me on predisilone soon if they dont work and i really dont want that.