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Table 3 Proposed diagnostic criteria for primary red ear syndrome

From: The red ear syndrome

A. At least 20 attacks fulfilling criteria B-E
B. Episodes of external ear pain lasting up to 4 hours.
C. The ear pain has at least two of the following characteristics:
  -Burning quality
  -Unilateral location
  -Mild to moderate severity
  -Triggered by cutaneous or thermal stimulation of the ear.
D. The ear pain is accompanied by ipsilateral redness of the external ear.
E. Attacks occur with a frequency of ≥1 per day, although cases with lower frequency may occur.
F. Not attributed to another disorder.