Regarding the cleansing-
I had a complete cleansing via the nasty jug of salt water you have to drink before a colonoscopy. I think those herbal teas only cleanse the lower digestive system out. Anyhow, I went back to my normal IBS-D symptoms within the day or day after the procedure.
I guess my point is IBS is such a horrible thing because different things work for different people and it's so hard to figure out what will work for each person. I'm glad you found something that helped!!!