The present invention relates to a support having a trilaminar structure which is prepared by laminating an inner fiber layer for holding a base, a film layer having through-holes, and an outer fiber layer which is breathable or cellular and can protect leaking out of the base or a liquid exuded from the base, and an aqueous patch with the support which can be applied to for long-term.本發明關於一種三層構造之支持體,其貼合有保持膏體用的內纖維層、設有貫通孔的薄膜層、及防止膏體或由膏體所滲出的液狀成分漏出到外部之具有通氣性的外纖維層;以及關於一種使用該三層構造之支持體所成可長時間貼附的水性貼附劑。