The Huff Cough: A Gentler Way to Clear Chest Mucus

When mucus sits in the chest, the instinct is to cough hard and often. The trouble is that forceful coughing tires you out, irritates the throat, and often doesn't shift much. Respiratory physiotherapists teach a better option: the huff cough.

How to do it

1. Sit upright with your shoulders relaxed.
2. Breathe in slowly through your nose to about three-quarters of a full breath.
3. Hold for two or three seconds.
4. Open your mouth wide and breathe out forcefully but steadily, as though fogging up a mirror — a "haaa" sound, not a bark.
5. Repeat two or three times.
6. Finish with one normal cough to bring up anything that's moved.

Why it works

A huff keeps the airways open while air moves quickly through them, helping carry mucus upward. A hard cough tends to squeeze airways narrower, which can trap mucus rather than move it. Huffing from a smaller breath helps with mucus lower down; a bigger breath targets mucus higher up.

When to use it

First thing in the morning, after exercise, or any time you feel mucus sitting in your chest. Most people find two or three short sessions a day plenty.

A note of caution

If you have a diagnosed lung condition, ask your doctor or a respiratory physiotherapist to show you the version best suited to you. And a cough that brings up blood, or lasts more than three weeks, always needs a medical check.

⚠️ These statements have not been evaluated by the FDA. BreathiZen® is a dietary supplement and is not intended to diagnose, treat, cure or prevent any disease. Talk to your doctor before starting any supplement.