带状疱疹后神经痛(PHN)是一种神经病理性疼痛,顽固的神经痛影响患者日常生活,降低生活质量。目前,药物治疗、类固醇激素行神经阻滞、脉冲射频、射频热凝毁损等方法可使大部分PHN患者的疼痛缓解,但仍有少数难治性PHN尚缺乏有效的治疗手段。近年来,水冷射频疼痛系统的出现改变了传统射 Postherpetic neuralgia (PHN) is a neuropathic pain that affects the patient’s daily life and reduces quality of life. Currently, drug treatment, steroid hormone block, pulsed radiofrequency, radiofrequency ablation and other methods can ease the pain in most PHN patients, but there are still a few refractory PHN is still lack of effective treatment. In recent years, the emergence of water-cooled radiofrequency pain systems has changed the traditional shot