How does a milk and bread poultice work?

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**How does a milk and bread poultice work? It was used on Little House on the Prairie. Google resulted in instructions for how to make them, but not the science of how or why it works. Can anyone explain how or why milk and bread, or a poultice at all, draws infection to the skin?**

In: Chemistry

> It was used on Little House on the Prairie.

It was used there, yes, but it doesn’t mean it *worked*. Milk and bread poultices are just one of many examples of folk remedies that don’t have any reason to work and have similarly low efficacy.

> draws infection to the skin?

That isn’t really a thing. Not just that this folk remedy doesn’t do it, but that “drawing infection to the skin” is an equally archaic and inaccurate concept of biology.