In the United States each year approximately 1,000,000 individuals develop herpes zoster. Of those individuals, approximately 10–18% develop<unk> . Fewer than 10 percent of people younger than 60 develop<unk>  after a bout of herpes zoster, while about 40 percent of people older than 60 do.
Postherpetic neuralgia
Trigeminal neuralgia
Atypical trigeminal neuralgia
Occipital neuralgia
Erythromelalgia
Morning sickness
Cold-stimulus headache
Cerebritis