This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Skin
[{'content': 'Treatment of dermatitis herpetiformis ? \nSelect and explain. \nA. Gluten free diet, B. Dapsone, C. Sulfonamide, D. All of the above', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Cong erythropoetic porphyria Tinea capitis shows greenish fluorescence. Erythrasma gives a coral pink hue. Pseudomonas infection gives a yellowish-green colour", 'role': 'assistant'}]