Yes there is , a natural way is taking aloe pills. It’s natural and definitely helps make a difference . Also another natural remedies for triggers is preleaf for when eat something that would trigger you ic.

I think my doctor told me 2000 mg . My husband found me a brand on I think amazon called now aloe Vera gels , and 10,000 mg. The desert harvest I got sample It was more expensive and I had take more . I’m sure there many but these only two I’ve actually taken for aloe. I much rather do that then elmiron, heard hair loss could be side effects and even my doctor didn’t suggest it, told me aloe is better option .

I do desert harvest because I've gotten fake pills on Amazon before. There is also a treatment called bladder installations where your doctor pours medicine in through a catheter. You only have to do those once every week or two. That might work better for you cause your stomach isn't involved? Also I think it is covered by insurance.