Is it used for skin eaching?

Oh, dude, "eaching" isn't a Word, but I got you! If you meant "Is it used for skin itching?" then yeah, it could be! Like, if you have an itch, scratching is usually the go-to move. But if it's a serious issue, like a rash or something, maybe see a doctor instead of just relying on scratching like a bear against a tree.