This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
[{'content': "Which of the following is not used in treatment of Frey's syndrome \nSelect and explain. \nA. Botulinum toxin, B. Temporalis fascia graft, C. Aluminium chloride, D. Antiprespirants", 'role': 'user'}, {'content': "Answer: B \nExplanation: Methods of Managing Frey's syndrome include: Antiperspirants, usually containg aluminium chloride Denervation by tympanic neurectomy Injection of botulinum toxin into the affected skin. This is the most effective and can be performed as an out-patient. Reference : Bailey & love, 27th Edition, page no = 795.", 'role': 'assistant'}]