Herpes Zoster Flashcards
What is the prodrome to herpes zoster?
pain itching fever headache fatigue
How does Herpes zoster present?
small & variable vesicles or pustules; dermatome distribution – unilateral, typically coalesce
T/F : a secondary infection is not common with herpes zoster?
F : secondary infection is common.
What Sx may the pt experience with herpes zoster?
Pain, may be severe.
Sx are typically worse in older individuals.
What is the etiology of herpes zoster?
reactivation of Varicella zoster virus (VZV)
how long does it take for viral shedding to clear?
10-21 days
what can develop as a result of herpes zoster?
may develop post herpetic neuralgia pain (can be severe)
How is Herpes Zoster diagnosed?
Cinically.
PCR or Direct fluorescent antibody test
(Viral cultures often negative)
What are the differential diagnosis to herpes zoster?
Herpes Simplex
insect bites
other vesicular disease
Need to r/o immunodeficiency (HIV)
How is Herpes Zoster treated?
- Self-limited
- Analgesics, antivirals and symptomatic treatment
- if started early, antivirals in large doses (Valtrex, Famvir, Acyclovir) can decrease shedding
- treatment of secondary infection (oral antibiotics)
How is post herpetic neuralgia treated?
Narcotic analgesics or tricyclic antidepressants
Can Herpes Zoster result in scaring?
Yes
what are some complications of Herpes Zoster?
involvement of nose tip may result in corneal involvement
How can you prevent getting Herpes Zoster?
Vaccine – given after age 60
