Incontinence-Associated Dermatitis Download PDF, 2.1MB, PDFIncontinence-associated dermatitis (IAD) is a common skin injury caused by prolonged skin contact with urine and/or faeces.You may know it as diaper dermatitis, diaper rash, perineal rash, or perineal excoriation. Good skin care keeps your skin healthy and helps you avoid IAD and its negative consequences. [Please download the PDF file if you are unable to view the image below.]