@anarchiv damn you sisters situation sounds like a handful. What kind of kidney stone does she have? I had them too. They were small and there was 5-6 of them, but they're the kinds that could be dissolved over time, by drinking lots of water and beer also helps cuz barley helps break them down. There's different kind of stones, some need surgery, but if they're putting it off because of the pandemic, then I'm guessing they're not the kind that need surgery. Try to do a little more research to find out what kind of stones they are, cuz if they're the kinds thst can be dissolved, then she needs to be careful about being hydrated or she might have pain attacks, but over a few months they'll get excreted out of her system. That's what happened with me. I don't have them anymore.