[MissMisa]

What does this say please? 'バカにつける薬はないわね'

I have no idea, I keep thinking I'm wrong. I mean, this is '薬' drugs, right? And obviously バカ is idiot. Does it supposed to mean, 'there is no drugs (cure?) for an idiot.' I saw it on someones status on facebook and thought I'd ask. (I know that ない is a negative, and I googled わね which supposed to mean emphasis, I don't know though. Lol, I'm always unsure of myself.)