A 56-year-old man with Type 2 diabetes reports pain in his feet that has a burning quality. Which of the following is the most appropriate treatment?

Choice A reason: Hydrocodone is an opioid and is generally not first-line for chronic neuropathic pain, due to dependency risks and limited efficacy for burning neuropathic pain. Choice B reason: This choice is correct because gabapentin is a first-line treatment for diabetic neuropathic pain. It targets nerve hyperexcitability and reduces burning, tingling, and neuropathic discomfort. Choice C reason: Acetaminophen is useful for nociceptive pain but is not effective for neuropathic pain caused by diabetic peripheral neuropathy. Choice D reason: Botulinum toxin is used for muscle spasticity or localized pain syndromes, not generalized diabetic neuropathy.