A Response to: Letter to the Editor Regarding Determining the Definitive Time Criterion for Postherpetic Neuralgia Using Infrared Thermographic Imaging

Summary: This study determined the time criteria for postherpetic neuralgia (PHN) by analyzing the skin temperature of patients with herpes zoster. The transition of skin temperature from warm to cold occurs 12 weeks after the onset of herpes zoster, indicating the end of local inflammation. This finding provides a theoretical basis for diagnosing and treating PHN.