What is the best treatment for postherpetic neuralgia?

... A systematic review of the evidence for the many drug treatments used in post herpetic neuralgia (the pain that persists after shingles) concludes that long-established treatments such as tricyclic antidepressants and some opioids are as effective as newer drugs such as gabapentin, tramadol, and pregabalin, and supports the use of tricyclic antidepressants as first line treatment... click link for more info. ...