VZV is a varicella-zoster virus, a double-stranded DNA virus that is weak to the outside world, not resistant to heat or acid, and can be killed by conventional disinfectants such as ether. Varicella-zoster virus can cause two different diseases, varicella and herpes zoster. Varicella is a primary infection that occurs in children and is characterized by the simultaneous appearance of papules, blisters and crusts on the skin. Herpes zoster infection is a secondary infection, mostly seen in adults who have had chickenpox in early childhood, and the virus, which is latent in the sensory ganglia, is activated when the body is immunocompromised, thus causing infection of the skin. It is characterized by clusters of herpes zoster along the peripheral nerves on one side of the body and is associated with severe pain.