so my sister warmed up milk that my son didn't drink. what can I do with it?

Give him a milk bath! It's great for their skin 🙂

I've used it for the next round....just put it in fridge @cjones

How did she warm it up? Microwave? It killed the antibodies. If it was warmed up by warm water in a bowl then u can reuse it by putting it in the fridge but it has to be used with in 24 hours

It's the weekend and I don't bottle feed when I don't work. .. she used hot water so I used it as a milk bath and I don't know if I did it right. ... @lexis1107

That's fine then your good :)