Our expert says:
This is a very painful condition. Other medications they can try are Tryptanol or Gabapentin if the Lyrica does not help. It is a nerve pain so normal pain medication is not very effective. On the healed areas you can try Sloan's liniment.
See also http://www.mayoclinic.com/health/postherpetic-neuralgia/DS00277/DSECTION=treatments%2Dand%2Ddrugs
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