Overview Shingles without a rash is called “zoster sine herpete” (ZSH). It’s not common. It’s also difficult to diagnose because the usual shingles rash isn’t present. The chickenpox virus causes all forms of shingles. This virus is known as varicella zoster virus (VZV). If you’ve had chickenpox, the virus will remain dormant in your nerve cells. Experts don’t […]
