To provide a means which makes it possible to reliably administer a sheet-like water-soluble preparation to skins at various sites and supply water from a back side of the sheet-like water-soluble preparation.A nozzle having at least one hole on an end portion having a plane with a size capable of holding a sheet-like water-soluble preparation, and having concave-convex portions on a portion of the plane excluding the hole; and an applicator for a sheet-like water-soluble preparation, which is composed of a liquid container and the nozzle.