Abstract:Objective: To explore the effectiveness and safety of PCA in the treatment of refractory herpetic neuralgia. Method: Retrospective analysis was conducted on 30 patients with refractory herpetic neuralgia who visited the hospital from January 2022 to December 2023, including 30 patients treated with PCA and 30 patients treated without PCA. Evaluated VAS、PSQI、HAMA before admission (T0), the second day after admission (T1), the fifth day after admission (T2), and at discharge (T3). MA),record and analyze adverse reactions. Result: After PCA group and NPCA treatment, VAS, PSQI, and HAMA were significantly reduced, and the PCA group was better than the control group. Conclusion: Identifying the risk factors for refractory herpes zoster (aging, special areas, special diseases) upon admission and using PCA full course intervention for the treatment of refractory herpes zoster neuralgia is superior to traditional therapy in reducing pain, improving sleep, and alleviating anxiety. Clinical application is safe and effective, and it is worth promoting.