Arnold’s nerve cough reflex: evidence for chronic cough as a sensory vagal

Arnold’s nerve ear-cough reflex is recognised to occur uncommonly in patients with chronic cough. In these patients, mechanical stimulation of the external auditory meatus can activate the auricular branch of the vagus nerve (Arnold’s nerve) and evoke reflex cough.

Arnold’s nerve cough reflex: evidence for chronic cough as a sensory vagal