Thanks for everyone that responded to my question. It's all good and enlightning to read about other folks experiences. Today I started on 'Mercaptopurine' and will have to see how long it will take to have the desired effect of bringing the diarrhea under control. Not looking forward to the side effect of hair loss though I have already had this happen in the past while on Azathioprine but that was a while back and since then my hair has grown back to normal - so to speak. Yesterday the specialist said it's my choice either Prednisone (had 2 courses of this when first diagnosed and suffered major outbreak of acne) or this Mercaptopurine (which I've never been on b4). Anyway, I looked at the doc. when he asked me and said "so basically my options are either hair loss or acne" ;-( Oh dear, I'm not a vain person but I opted for the hair loss just hope it was the right decision. I will start on the Metamucil tonight and hope for the best.
As you can gather I'm new to this forum (which I think is great) so please ignore my waffling on as I have so much on my mind and it's great to mention it to fellow CD sufferers who understand exactly what I'm saying.