This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hypo Pigmentary Disorders, Subject name: Dental
[{'content': '38 year old male with hypopigmented patches near both ankles. What is not used for treatment? \nSelect and explain. \nA. Topical clobetasol, B. Topical tretinoin, C. Topical tacrolimus, D. Topical methoxsalen', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Treatment of vitiligo: 1.Topical a. Steroids eg: clobetasol b. Calcineurin inhibitors like tacrolimus c. Vit D analogues 2. Systemic a. Steroids b. Azathioprine 3. Phototherapy a. PUVA b. PUVASOL c. Narrow band UVB d. Targeted Phototherapy 4. Surgical treatment. Impoant point: Topical methoxsalen is Psoralen.', 'role': 'assistant'}]