Moisture permeable double disk

A skin contact device for applying a medicament to the skin of a patient comprising a film layer which is thin and flexible and which is non-occlusive to the passage of water vapor, said film layer including an outer surface, an inner surface, and an outer periphery, an adhesive layer on said inner surface of said film layer for maintaining said film layer on said skin, at least one occlusive layer disposed on said inner surface of said film layer, said at least one occlusive layer including an outer surface in adhesive contact with said film layer and an inner surface carrying said medicament to be applied to said skin of said patient, said at least one occlusive layer being occlusive to the passage of water vapor and to said medicament and having an outer periphery contained fully within said outer periphery of said film layer, and vent means between said inner surface of said at least one occlusive layer and said film layer permitting the free passage of water vapor contained within said at least one occlusive layer through said vent means for passage through said film layer, while substantially preventing the passage of said medicament through said film layer.