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Omron-nebulizer---what-is-a-cough

Coughing

A cough is a protective reflex to clear your airways of mucus and irritants such as dust or smoke. It's rarely a sign of anything serious.

What is a cough?

A cough is a protective reflex to clear your airways of mucus and irritants such as dust or smoke. It's rarely a sign of anything serious.

A dry cough means it's tickly and doesn't produce any sputum. A productive cough means sputum is produced and coughed-up to help clear the airways.

Most coughs clear up within three weeks and don't require any treatment. For more persistent coughs, it's a good idea to see your GP so they can investigate the cause.

Causes

Most coughs are caused by cold or flu. Other causes include:

  • smoking
  • allergies – for example hay fever
  • infections like common cold or bronchitis
  • asthma
  • mucus dripping down the throat from the back of the nose
  • heartburn (acid reflux)

Reference:

Retrieved from: UK National Health Service, www.nhs.uk/conditions/cough/ (accessed 20 December 2017)