This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blistering disorders, Subject name: Dental
[{'content': 'Systemic steroids are not used in treatment of? \nSelect and explain. \nA. Pemphigus vulgaris, B. Bullous pemphigoid, C. Dermatitis herpetiformis, D. Pemphigus foliaceus', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Systemic steroids are not required in DH Dapsone is D.O.C. S/E of Dapsone: Hemolysis and Methemoglobinemia.', 'role': 'assistant'}]