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Dermatology literature reveals critical diagnostic and therapeutic insights for complex skin conditions. Demodicosis in hematopoietic stem cell transplant patients often mimics acute graft-versus-host disease, necessitating careful evaluation to avoid misdiagnosis, while ivermectin treatment may trigger systemic Mazzotti-like inflammatory reactions. In managing prurigo nodularis, JAK inhibitors demonstrate faster efficacy than biologics, though clinical debate persists regarding whether the condition represents a distinct entity or a subtype of atopic dermatitis. Comparative registry data further highlights that JAK inhibitors carry a significantly higher risk of herpes and bacterial skin infections compared to IL-13-blocking biologics, which appear to restore cutaneous innate immunity. Additional therapeutic strategies include utilizing intranasal corticosteroids for refractory chronic idiopathic urticaria and applying saline-soaked gauze dressings to enhance barrier restoration in atopic cheilitis.