Taxotere® can induce nails changes like dyschromia, hematoma, lines of Beau-Reil (signing the stop of the epithelial proliferation), abscess, or pain. In this context, this randomized, monocentric phase III trial evaluates the cryotherapy, using frozen glove, in the prevention of nails toxicity induced by Taxotere® in patient treated for breast or prostate cancer.