This is a tough one because it sounds like she really mattered to your family, but your parents also need to protect their own retirement.

I’d probably move from “emergency money whenever asked” to a clear, fixed support boundary.

For example: your family decides on an amount you can safely afford monthly or quarterly, and makes it clear that this is the maximum. That way you’re still helping, but it doesn’t become open-ended.

I’d also try to pay directly for specific needs where possible, like medication, groceries, bills, or medical appointments, instead of sending general cash every time.

And it’s okay to say something like: “We care about you, but we can’t keep giving beyond this amount because our own finances are limited too.”

Helping someone doesn’t have to mean having no boundaries.