This paper explores the etiology, pathogenesis, and acupuncture treatment principles of herpes zoster based on the academic perspective of “eliminating the prolonged stagnation” from Ling Shu: Nine Needles and Twelve Source Points. The core pathogenesis of herpes zoster is “deficiency” and “stasis,” with blood stasis being the primary pathological product. The blood stasis obstructs the meridians, triggering neuralgia. The therapeutic principle focuses on promoting blood circulation to resolve stasis and regulating qi to alleviate pain. Guided by “eliminating the prolonged stagnation,” the acupuncture therapy [e.g., He’s Santong needling method: Weitong (normal needling), Wentong (fire needling), and Qiangtong (bloodletting)] acts directly on the stasis areas through techniques like filiform needling, fire needling, and pricking and cupping, thereby effectively alleviating neuralgia caused by herpes zoster. Clinical case studies are used to illustrate the significant advantages of acupuncture therapy under the guidance of the theory of “removing the prolonged stagnation” in treating neuralgia associated with herpes zoster.