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: Surgery
[{'content': 'Which of the following is not recommended in the treatment of Chronic Low Back Pain: \nSelect and explain. \nA. NSAIDs, B. Bed Rest for 3 months, C. Exercises, D. Epidural steroid Injection', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B. i.e. Bed rest for 3 months In low back ache (lumbago) bed rest should not exceed 2 (to 4) daysQ, because bed rest for longer period may lead to debilitating muscle atrophy and increased stiffness. Therefore bed rest > 2 days (Harrison)/>4 days (CDTF) is not recommended.', 'role': 'assistant'}]