Herpes zoster and postherpetic neuralgia: an examination of psychological antecedents.

Herpes zoster and an associated complication, postherpetic neuralgia, are both attributable to the varicella zoster virus. This virus, which lies dormant within the affected sensory ganglia after an initial infection, appears to be triggered in part by a decrease in immunity. According to available research, stress, stressful life events, and depressive symptoms are identified antecedents to outbreaks of herpes zoster. Likewise, the development of postherpetic neuralgia has been associated with the psychological antecedents of somatization, nonspecific personality psychopathology, hypochondriasis, and somatic symptoms. Also studied, the role of mood and anxiety symptoms as antecedents for postherpetic neuralgia remains controversial. In conjunction with other factors (e.g., age, nutritional status, comorbid medical diseases), stress and psychological symptoms may contribute to a lowering of immunity and thereby function as antecedents as well as consequents of both herpes zoster and postherpetic neuralgia. Few studies have examined explicit psychiatric diagnoses and their association with varicella zoster virus reactivation.