The invention concerns a kit for protecting dressings and/or traumatized skin regions of the body. The kit includes a case containing at least one non-dedicated flexible and water-impermeable base sheet or global sheet with dimensions enabling a plurality of single or individual adapted covering parts to be cut out. The base sheet is preferably made of a non-allergenic material and easily divisible into pieces or fractions of smaller dimensions, for example with a pair of scissors. The kit also includes a package containing a water-impermeable and non-allergenic pasty adhesive, having properties enabling adherence both to the skin and to the protective sheet.