Study Using Spray Skin Protector Versus Conventional Treatment to Prevent Acute Radiodermatitis.

This is a randomized, open-label, single-institution trial designed to evaluate the effectiveness of a spray skin protector in preventing moist desquamation caused by radiotherapy treatment. This technology, spray skin protection, depending on the manufacturer, is primarily intended to prevent or reduce contact dermatitis. However, this study will be evaluated for use in preventing moist desquamation caused by ionizing radiation. The comparing agent will be a moisturizer, agreed upon at the local Institution of the study for use in the prevention of radiodermatitis. As secondary objectives: describe adverse events, diarrhea, pain and pruritus. The study will be conducted at the radiotherapy outpatient clinic of the Cancer Hospital I (HCI) of National Cancer Institute (INCA) in Brazil.