Provided are methods for treating, reducing, alleviating, and/or inhibiting neuropathic pain by orally, intravenously or intrathecally administering an effective amount of an inhibitor of soluble epoxide hydrolase (“sEH”), to a patient in need thereof. The neuropathic pain treated is selected from the group consisting of post-herpetic neuralgia, trigeminal neuralgia, focal peripheral nerve injury, and anesthesia dolorosa, central pain due to stroke or mass lesion, spinal cord injury, or multiple sclerosis, and peripheral neuropathy due to diabetes, HIV, or chemotherapy.