Efficacy of transcutaneous auricular vagus nerve stimulation on radiotherapy-related neuropathic pain in patients with head and neck cancers (RELAX): protocol for a multicentre, randomised, double-blind, sham-controlled trial

Abstract

IntroductionRadiotherapy-related neuropathic pain (RRNP) is one of the most distressing complications after radiotherapy for head and neck cancers. Drug therapy is not sufficiently effective and has limitations in terms of...