Science Questions

When I clean the ear wax from my ears using a q-tip, I tend to feel an urge to cough. Is this a common reflex? Am I pressing on a ‘coughing nerve’ with the q-tip? Paul

There is a cough-ear reflex, but only 2.3% of the population experience it. There’s something called Arnold’s nerve, part of the vagus nerve which supplies the head and neck. It supplies the back and lower floor of the external auditory canal – the tube towards your inner ear. If stimulated, this nerve can provoke a coughing reflex.

Although only 2.3% of people experience this in one ear, only 0.6% get it in both!

July 2007