Cluster headaches: Cluster headache is a rare

Cluster headache is a rare and severe type of headache that causes intense pain in or around the eye on one side of the head. It's typically the most painful type of headache. A cluster headache is an uncommon type of headache. It is one-sided head pain that may involve tearing of the eyes, a droopy eyelid, and a stuffy nose. Attacks last from 15 minutes to 3 hours, occur daily Cluster headaches cause severe, one-sided head pain. These headaches usually last for at least 30 minutes and happen multiple times per day. They tend to follow a pattern, often showing up at the same time each day. Headaches can last for months at a time before stopping. Cluster headaches are severe, frequent and one-sided headaches that can last from 15 minutes to 3 hours. They can be treated with medicines, oxygen, electrical stimulation or surgery, and prevented with other drugs.