A thin aqueous cataplasm material having a support and a pressure-sensitive adhesivelayer (a plaster) having a specific component laminated thereon, wherein thesupport comprises a fiber film comprising a composite fiber composed of a naturalfiber and a soft plastic fiber entangled with each other and, heat-fused thereto,a soft plastic resin, or the support comprises a fiber film comprising a fibercomposed of a plastic having a soft part and a hard part in common and, heat-fused thereto,a plastic resin having a soft part and a hard part in common. The thin aqueous cataplasmmaterial can retain a moisture-protecting effect of a skin and provide a userwith comfortable feeling.
