This cоnditiоn is cаused by the chicken pоx virus (herpes zoster). After one hаs chicken pox the virus migrаtes to the spine and lives there indefinitely. When the immune system weakens, emotional stress occurs, or the person has immunodeficiency or cancer the virus reactivates. It has been estimated that up to 1,000,000 cases of the condition occur each year in the U.S. The sufferer can have pain for more than a week before the virus manifests and pain can be intense. The sensation of the condition can be itching, tingling, burning, constant aching, or a deep, shooting pain. Other nonspecific symptoms that can occur at the same time are fever, chills, headache, or upset stomach. What condition does this describe?