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Facial palsy secondary to herpes zoster virus has traditionally been associated
with Ramsay Hunt syndrome (typical cutaneous vesicles and cochleovestibular dysfunction).
However vesiculation may not necessarily appear (zoster sine herpete) or may be
delayed in up to half of patients
- preherpetic neuralgia (dermatomal pain
and dysaesthesia before vesiculation) may be the only clinical indicator that
herpes zoster virus is involved
- almost a third of facial palsies previously
diagnosed as idiopathic are thought to be due to zoster sine herpete
Treatment
is with prednisolone and aciclovir (1)
- 2000 mg/day of aciclovir seems
to be effective in patients with zoster sine herpete
- on the basis of current
evidence, in the absence of major pain or evidence of vesicles, this dose (2000mg
per day) would be adequate with steroids for treating Bell's palsy associated
with herpes zoster virus
Reference:
- Holland
NJ, Weiner GM. Recent developments in Bell's palsy.BMJ. 2004 Sep 4;329(7465):553-7
Last reviewed 01/2018
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