Caused by Human Herpes Virus
DNA virus with 8 serotypes
oHSV 1
oHSV 2
oVZV
oEBV
oCMV
oHHV 6,7,8
Persist in the sensory ganglia for life
Spread by direct contact when shedding virus
Usually recurs at primary site
Associated malaise. Has a characteristic burning, tingling, itchy sensation
Symptoms may precede rash
Grouped coalescing vesicles