Hi,
many things are more homeopathic to look at when meds aren't working so great. I thought I might have Crohn's after lots of tummy trouble. Things that might help are , you might have to look around a bit for them:
Probiotics: take these in tablet form with each meal to help digestion and reduce gas
Aloe Vera tablets: These are great at reducing inflammation in the gut and colon
Aloe Vera juice: This is really good to soothe inflammation, many sufferes swear by it
Vitamin D: If you don't get much sunlight, vitamin D would be great to stock up on. It's useful in autoimmune diseases because it helps regulate the immune system
Omega 3 fish oil, good for inflammation and overall health.
regular multi vitamin is also a good idea
lemon grass and ginger smoothie (may have to make yourself) Ginger is great for nausea
Diet: People with Crohn's should avoid very bulky foods as these are hard to digest and cause pain, more liquid based foods like soup, smoothies etc are good
Some people say that Crohn's can actually be cured by going on a special diet. This may work for some but not others.
Cut out dairy for a month, note any differences. If you notice positives, avoid dairy for good. Do this with gluten as well.
A raw food diet is meant to work wonders but is hard to adhere to.
Avoid: Lots of wheat and milk, alcohol, lots of sugar, spicy food, greasy/oily food
Food diaries are good
Good Luck
Crohn's 
