can shingles develop when a person is fighting another infection
Shingles is a painful, blistering rash that is caused by the same virus that causes chickenpox, the varicella-zoster virus (VZV). Shingles can only occur in people who have had chickenpox. Although the symptoms of chickenpox usually go away after the recovery from the initial childhood infection, the virus remains hidden in nerve cells. In some people it remains dormant forever, yet in others it attacks again.