Although I am not med-free I wanted to answer your question. Years of Rx never did anything I could detect to help my UC. My remission (first time in 10 years of UC hell) came with diet modification, Specific Carbohydrate Diet. It's not alternative medicine just an alternative diet.
I take the bare minimum of meds, just Balsalazide.
If you are still having symptoms be careful about
dropping all meds in favor of something "alternative". I was pretty sick of taking meds that did nothing to help but gave me unpleasant side effects so I understand your goal. Just be careful not to make things worse.
Probiotics are a good place to start. I take VSL#3.
In remission April 2010 after 10 years of suffering and no remission ever
Jan 2010 started SCD diet (modified to remove dairy, fruit & juices)
Bleeding stopped in 3 days, 95% remission in 5.5 months
Diet: Gluten/grain-free, fructose-free (blueberries OK), dairy free (swiss cheese OK), starch-free
I eat: Protein(meat/fish/eggs,no soy), nuts(soaked/roasted), non-starch veggies, nut-flour muffins
Daily: fish oil, Vit D3 2000 2Xday with oil/fat, veggie juice, sunflower seeds, probiotic VSL#3
homemade yogurt and some fruit OK at 5.5 month remission
Highly recommend: the book "Life without Bread" and the Specific Carbohydrate Diet