Hot topics and trends in acupuncture for herpes zoster from 2015 to 2025: a bibliometric and knowledge graph analysis

Global research on acupuncture for HZ and PHN has increasingly shifted toward precision and evidence-based approaches. Comparative analysis indicates that Chinese literature primarily emphasizes clinical applications and traditional Chinese medicine techniques, whereas international studies focus more on methodological rigor and mechanistic evidence, underscoring the need for strengthened international collaboration and high-quality multicenter trials to advance the field.