What Matthew says is true about strictures only if they are made up solely of scar tissue. Strictures CAN be made up of a mix of scar tissue and inflammation, in which case if the inflammation dies down, the remaining scar tissue might not cause any problems. Strictures can also be made up only of inflammation, in which case they can disappear if effectively treated - my daughter's stricture vanished once her inflammation died down.
It does make some sense to use pred to prevent a reaction, and the doc does sound like s/he is being careful and methodical about Remicade. Matthew's antibody test suggestion sounds good and true, many docs are now promoting the top down approach, meaning starting with the strongest stuff - biologics - first.
I don't happen to subscribe to this approach, but this is partly because my daughter is doing well on meds and diet.
Daughter (22) Dx'd Crohn's 3/06. Misdiagnosed for two years, including by top pediatric Crohn's specialist as stress. No symptoms for the past three years. March '09 colonoscopy showed stricture gone but two spots of inflammation in TI. Used LDN to taper off Entocort last fall. (Was on Entocort since April 06.) Never had D. 4.5 mg LDN, SCD multivit, homemade yogurt, 5000IU vit D3, 1000 mg calcium, 27-54 mg iron, monthly B12 shots, daily oral B12 1000, 10mg zinc. SCD diet modified years ago to include potatoes and rice.