"Before [onco-dermatology] was created, skin toxicities, among other things, were one of the most common reasons that cancer-related therapies were stopped,” Allireza Alloo, MD, said in a recent interview with Cancer Network. As patients receive treatment for breast cancer, whether it is chemotherapy or targeted therapy, toxicities will occur. Among these toxicities, dermatologic adverse events (dAEs) affect many and may require specialists to be properly managed.