Shingles, or herpes zoster, is a viral infection causing a painful rash, often appearing as a stripe of blisters on one side of the body. It's caused by the reactivation of the varicella-zoster virus.

FAQs:

• Who is at risk for Shingles?
  Individuals who've had chickenpox; risk increases with age and weakened immune systems.

• Is it contagious?
  The virus can be spread to those who haven't had chickenpox, causing chickenpox, not shingles.

• How is it treated?
  Antiviral medications can reduce severity and duration; pain management is also important.