(Concern) Cystitis

I suddenly developed cystitis a few years ago, and I heard that cystitis has no complete cure. They said it can recur at any time, and indeed, symptoms suddenly appeared at some point. The symptoms of cystitis are a pain that people who haven't experienced it can't understand—really intense suffering. I also used to have protein in my urine, so I wonder if my urinary system is inherently weak or something. Anyway, every time symptoms appear, it's really tough. Do you think taking medication for cystitis or supplements that are good for the kidneys would help improve the situation?