Friends, shingles is not pretty and to boot, a potential side effect of shingles is post-herpetic neuralgia, and intense and enduring nerve pain that can follow an episode of shingles.  A vaccine is available however it appears that the effect fades over time as the New York Times has reported:

The effectiveness of the Zostavax vaccine against herpes zoster, the virus that causes shingles, gradually fades with time, but a booster vaccine is not yet approved.

However, it appears that a booster dose of Zostavax vaccine has been proven effective and safe, so you may want to discuss a booster dose with your physician if you’ve been vaccinated for shingles for over 10 years as recent studies have shown a since dose of vaccine is not effective after eight years.

Read more at the New York Times: A Booster Vaccine for Shingles?