Cluster Headache
Cluster headache is a primary headache, meaning the pain comes from the condition itself rather than another cause. It is rare, affecting roughly 1 in 1000 people, and attacks arrive in clusters over a period.
Key points
- Attacks are severe and one-sided, often centred around the eye, and can wake a person from sleep.
- It is one of the most painful conditions a person can have, and the pain is often described as burning or piercing.
Medicines listed for cluster headache
The listed product, Imitrex, contains Sumatriptan, a triptan. Triptans work by narrowing blood vessels around the brain and blocking pain pathways during an acute cluster headache attack.