Have you discussed this with your GI?
I understand your concern it is all very overwhelming and stressful to deal with for all of us and choosing to use stronger meds can be very scary. I know it was for me and for MANY others on here. You are definitely not alone. It is good you are considering your options however I ask that you take the following into consideration:
Diet unfortunately does not cure IBD. It only helps to calm symptoms. While you may feel better, on the inside the disease can still be visibly present and damage quietly being done.
If your doctor has suggested 6-MP then I would imagine your disease is active and at a level of inflammation and damage that requires the use of a stronger med to manage your IBD activity over the long term. And prednisone is only meant to be a temporary solution to get things under control which means that once you get off of it the likelihood of a flare coming back does exist and may be high depending on the amount of damage seen in your digestive tract.
It is the hope of many of us to be able to control this disease med free but unfortunately this is a very challenging desire and the risks of going med free far outweigh the benefits of a hollistic lifestyle for many of us.
Now using the prescription meds, diet and lifestyle changes COMBINED can eventually be helpful in not only maintaining remission but also reducing the amount of meds you need in general to control things.
Just something to think about.....please discuss with your GI if you have not already. Make sure you understand exactly what is going on in your insides and what they look like to help you make the best decision possible for you.
Wishing you the best....
Okay, I chickened out, I'm going to try diet and holistic medicine before I go on the drugs. Already on Asacol and predisone.