Look up Self Healing Colitis and Crohns by David Klein online. It's worked for so many people!
Unfortunately you can't depend on a home cure for this awful disease. Do keep up your gastroentologist appointments as there are lots of new things that can help. I had UC for ten years when I was younger and was ultimately cured with the J-Pouch surgery. My son is now suffering and his doctor has put him on Imuran, an immune suppressant which can apparently put you into remission for something like 6 years. He is feeling better.
Some things you can try and which I have read about in science texts are:
- probiotics (take the supplement, not just the yogurt)
- gluten free diet has been proven to help UC
- marijuana - my son stayed very healthy when he smoked this regularly. See if your state (we live in Canada so much easiaer) has medical marijuana laws. It really works.
Do avoid dairy, spicy foods, sugar and alcohol when you are flared. Good luck!