Sterile cooling compress

"compress with cooling effect, its manufacturing process and its use". the invention refers to a compress with cooling effect, based on particles (6) of a polymer with high water absorption capacity that is included with a water reserve for its activation in an article (2) that comprises, inside an outer sachet (3) watertight, on the one hand, an inner bag (4) filled with water, closed to water by a wall containing a frangible area (10), and on the other hand, the compress (1) made in the form of an envelope (5) at least partially permeable to water which contains the polymer particles (6) in a dry state. the sachet (3) is made of a material designed to keep the bag (4) and the compress (1) in a sterile state.