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: Dental
[{'content': 'A 24 year old unmarried woman has multiple nodular, cystic, pustular and comadonic lesions on face, upper back and shoulders for 2 years. The drug of choice for her treatment would be – \nSelect and explain. \nA. Acitretin, B. Isotretinoin, C. Doxycycline, D. Azithromycin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The DOC for nodulocystic acne is oral isotretinoin (13-Cis Retinoic acid)\nIndications of isotretinoin →\xa0\xa0 Severe acne (>25 lesions), Nodulocystic lesions, Large nodular lesions, Moderate acne not responding to oral antibiotics (Recalcitrant acne).', 'role': 'assistant'}]