How well does the shingles vaccine work?
In studies, the vaccine reduced the risk of developing shingles by about 50 percent. People who were vaccinated but still developed shingles had pain for fewer days than people who were not vaccinated. Probably of most importance is that vaccinated people experienced shorter periods of PHN (post-herpetic neuralgia), a severe pain that can last long after the shingles rash has disappeared.
