Cutaneous side effects of childhood cancer therapies contribute to patient morbidity and can negatively affect quality of life. Traditional cancer therapies target rapidly dividing tissues; thus, many of their side effects inevitably involve the skin, nails, and mucosal surfaces. It is important for clinicians to recognize cutaneous reaction patterns and understand the underlying mechanisms of chemotherapeutic agents to detect and manage symptoms early and allow for continuation of therapy. In this scoping review, we discuss common cutaneous reactions to traditional classes of chemotherapeutic agents and antineoplastic antibodies in children, with specific examples from each drug class.