I tried a lot of these remedies. As for the Grapeseed Extract, I read that it could cause problems, but my other thought is, if it kills bacteria, then it could kill all the good bacteria too. I could be wrong.
What someone told me to do, as she had, is to take Paul D'Arco tea 3 cups a day and to take probiotics. I failed miserably on drinking the tea 3 times a day, but I took a lot of probiotics, and it helped. Then I had one small pain in my colon, and I didn't know what to do about that. It dawned on me that it could be gas, so I took some charcoal capsules, and it went away.
I am still drinking noni juice in case it can heal the pouch I have. But I also plan on buying some papaya tablets, but I am drinking the juice.
Personally, I think it was the probiotics that helped most.