What should you know about huff cough?

Instead of closing your throat and coughing forcefully, you breathe in gently and exhale with an open mouth while saying “huff”. This creates airflow that can loosen mucus without the same strain as repeated hard coughs. A small huff can move mucus from the deeper airways; a larger huff can bring it toward the mouth.

Huffing can be useful when mucus is present with conditions such as bronchiectasis, acute bronchitis or a common cold. A cough may also accompany asthma, allergic rhinitis or acid reflux, but huffing does not treat the underlying cause.

Sit upright with your shoulders relaxed. Take a slow, comfortable breath in, hold it briefly, then breathe out firmly but not violently through an open mouth. Repeat with relaxed breathing between huffs. When mucus reaches the throat, use a normal cough to clear it into a tissue. Stop if you develop chest pain, marked wheezing, dizziness or worsening breathlessness.

Drink fluids as appropriate for you and use any prescribed inhaler exactly as directed. A physiotherapist can tailor airway-clearance techniques when mucus is frequent or difficult to clear.

Get urgent help for severe breathing difficulty, blue or grey lips, fainting, confusion or coughing up more than a small streak of blood. Arrange medical assessment for a cough that persists, recurring chest infections, fever that is worsening, unexplained weight loss or mucus that changes substantially. A huff cough should not delay assessment of these warning signs.

Ask whether your cough is mainly clearing mucus or signalling irritation, which technique suits your breathing pattern, and whether you need an inhaler review or breathing assessment. Mention the colour and amount of mucus, triggers and any nighttime symptoms.