Table 3 Proposed diagnostic criteria for primary 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.