How is postherpetic neuralgia (PHN) prevented?

Updated: Feb 11, 2021
  • Author: Camila K Janniger, MD; Chief Editor: Dirk M Elston, MD  more...
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The only consistently successful method of treating PHN is to prevent it via prompt treatment of acute zoster and its associated pain. Initiation of antiviral therapy as early as possible in the course of acute zoster, and definitely within 72 hours of onset, has been shown to be effective in alleviating acute pain and preventing PHN in most patients (though treating already-established PHN with antivirals appears not to be beneficial [110] ). Consultation with pain specialists may also be required. [5, 111, 112, 113]

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