I have had problems with kidney stones for over 10 years.
In my experience, what has so far worked to slow formation of stones is a change in my vitamins minerals (more magnesium and iodine)
I also have been drinking straight lemon juice (citrates) in larger amounts later in the day. One reads often about citrates helping in kidney stone formation
I believe acidic lemon juice also helps the gut have a lower pH, (and possibly in renal system also) which helps eliminate coliforms / E.Coli, which can’t exist in acidic environments.
I’m only one person, so these comments do not represent any kind of replicable study, but It has worked for me over the last 18 months.
Cystoman® and calculi: a good alternative to standard therapies in preventing stone recurrence
https://pubmed.ncbi.nlm.nih.gov/24972556/
Until this study, it was not generally thought E. coli could be in the kidney, itself.
Increasing Lactobacillus crispatus and taking modest amounts of D-mannose might yield great benefits.