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People who received a vaccination for shingles (also known as herpes zoster) but still contracted shingles had a lower risk of developing post-herpetic neuralgia (PHN), a potentially long lasting and painful complication of the condition. The Kaiser Permanente study was published in The Journal of Infectious Diseases.
This study demonstrates that the shingles vaccine can still be beneficial in reducing the risk of long term pain even among those patients for whom it does not prevent the disease.
Shingles is a painful skin rash that affects one in three adults and is caused by the varicella zoster virus, the same virus that causes chickenpox. The most common complication of shingles is PHN, for which treatment for the pain may be necessary for months to years.