What Are Trigeminal Autonomic Cephalgias?
The various autonomic cephalgias differ in definition by the duration and frequency of the headache attacks, as well as by some of the symptoms. Most of them respond to a medication called indomethacin.
The main types of trigeminal autonomic cephalgias are cluster headache, paroxysmal headache, and SUNCT, an acronym for Short-lasting, Unilateral, Neuralgiform headache attacks with Conjunctival injection and Tearing.
Details of the TACs can be found at ichd-3.org.
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