Previously to the release of Sumatriptan the most effective thing for cluster headache interestingly, was oxygen inhalation and patients would rent a cylinder of oxygen and carry it around in their car or wherever, and breathe oxygen, and that's actually surprisingly effective for a large number of patients.
(oxygen inhalation and patients; carry; it; around) (oxygen inhalation and patients; breathe; oxygen) (that; 's actually; surprisingly effective for a large number of patients)
oxygen inhalation and patients oxygen inhalation and patients that
carry breathe 's actually
it around
oxygen
surprisingly effective for a large number of patients