It may spread to your forehead
Cluster Headaches
Cluster headaches are a series of relatively short but extremely painful headaches every day for weeks or months at a time. You tend to get them at the same time each year, such as the spring or fall. Because of their seasonal nature, people often mistake cluster headaches for symptoms of allergies or business stress.
We don't know what causes them, but we do know that a nerve in your face is involved, creating intense pain around one of your.
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