This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pharmacology
[{'content': '18yr old female complains of recurrent acne all over her face and neck. Which of the following is the preferred drug to be applied topically? \nSelect and explain. \nA. Minocycline, B. Oxytetracycline, C. Demeclocycline, D. Doxycylcine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Minocycline is specific tetracycline used for acne and for chronic facial dermatosis. It is too toxic to use systemically. It causes vestibular toxicityRef: HL Sharma 3rded.Pg: 760', 'role': 'assistant'}]