This site's own mechanism sequence lists this specific second step — worth understanding it on its own, distinct from the airway-clearing step before it.
This site describes it directly: Ginger root is known for its warming, soothing properties, chosen to help ease the kind of tickle or irritation that can make each breath feel harder.
This site separately names Ginger specifically in its blood-pressure-medication caution, noting mild vasodilating effects — worth reading this mechanism step alongside that specific safety note.
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