Syringing of the Ear for removal of ear wax or a foreign body sometimes results in persistent cough.Why?
The auricular branch of vagus supplies the skin of the auricle,the external acoustic meatus,and the tympanic membrane.
The syringing of the ear may cause irritation of the auricular branch of the vagus nerve.This results in persistent cough and rarely even death due to sudden cardiac arrest by vagal stimulation.
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