What is an effective way to abort cluster headaches?

The most effective way to abort cluster headaches is by using calcium channel antagonists or 100% oxygen application. Cluster headaches are characterized by severe unilateral pain that occurs in bouts, and oxygen therapy is particularly beneficial as it works by constricting blood vessels and improving oxygenation, which provides rapid relief. Administering 100% oxygen at the onset of a headache can often lead to significant improvement within 15 minutes.

Other treatments include medications specifically designed for acute relief such as triptans; however, in the context of this question, the focus on oxygen therapy highlights its effectiveness due to its direct physiological impact on the vascular components involved in cluster headaches. This method is favored because it is not only effective but also avoids potential side effects of medications.

In contrast, applying heat or cold packs, the use of NSAIDs or aspirin, and ingestion of caffeine or hydration may contribute to headache management but are not considered first-line treatments for immediate relief of cluster headaches. They typically do not address the pathophysiological mechanisms underlying cluster headaches as effectively as oxygen therapy does.