Headache Disorders
Do You Know What Trigeminal Autonomic Cephalalgia Is?
Trigeminal autonomic cephalalgia (TAC) is a group of primary headache disorders. The one most commonly heard of is cluster headache. This group of headache disorders are strictly unilateral, which means they cause symptoms only on one side of the head. They usually involve symptoms such as a red watery eye, stuffy or runny nose, forehead sweating, swollen droopy eye, and/or unilateral pupil constriction – these are known as cranial parasympathetic autonomic features. While this group of headache disorders has these common traits and are known as TACs, there are also important differences which help determine the most appropriate diagnosis.
Read MoreDo I Have Migraine or Cluster Headaches?
Migraine disease and trigeminal autonomic cephalgia (TAC – which includes cluster headache) are two different primary headache disorders. While it is possible to have both, one does not morph into the other, the severity of migraine does not change the diagnosis, and there is no such thing as “cluster migraine”! Accurate diagnosis is crucial but can be tricky, so it’s important to work with a certified headache specialist who can help you navigate this process and figure out what treatments might have a higher success rate for you. Knowing some of these key differences between migraine and cluster will help with that process:
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