Herpes Zoster (Shingles)

Herpes zoster, colloquially known as shingles, is the reactivation of varicella zoster virus (VZV, primary infection of which leads to chickenpox), one of the Herpesviridae group, leading to a crop of painful blisters over the area of a dermatome.

See complete Wikipedia article here.

For more information from the American Academy of Dermatology click here.