Overview
A primary headache disorder marked by severe one-sided attacks around the eye or temple, usually occurring in clusters over weeks or months.
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When to Seek Help
Seek urgent medical attention for a sudden severe headache, headache with weakness, confusion, fever, seizure, head injury, vision loss, or a new headache pattern that is unusual for the person.
This information is for education and awareness and is not a substitute for individual medical assessment, diagnosis, or treatment.