The invention relates to collagen for use in the treatment of inflammatory and degenerative skin diseases and damage to the skin connected therewith, such as in particular in the treatment of psoriasis, dermatitis, neurodermitis, rosacea, urticaria (hives), pruritus (itching), skin eczema and actinic keratosis. In particular, the invention relates to freeze-dried collagen in the form of layered dressings, sheets, pads or masks for the aforementioned use.
