13.3.2.2 Post-herpetic neuralgia of nervus intermedius

Description:

Unilateral pain persisting or recurring for at least 3 months in the distribution of nervus intermedius, felt deeply in the auditory canal, caused by nervus intermedius herpes zoster infection.

Diagnostic criteria:
  1. Unilateral pain in the distribution of nervus intermedius1, persisting or recurring for >3 months and fulfilling criterion C
  2. Nervus intermedius herpes zoster infection has occurred
  3. Pain developed in temporal relation to the herpes zoster infection2
  4. Not better accounted for by another ICHD-3 diagnosis.
Notes:
  1. In the auditory canal, auricle and/or region of the mastoid process.
  2. Usually, pain will have developed while the infection was still active, but on occasion later.