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Catarrh is a build-up of mucus in an airway or cavity of the body.
It usually affects the back of the nose, the throat or the sinuses (air-filled cavities in the bones of the face).
It's often temporary, but some people experience it for months or years. This is known as chronic catarrh.
Catarrh can be a nuisance and may be difficult to get rid of, but it's not harmful and there are treatments available.
This page covers:
Symptoms associated with catarrh
Treatments for catarrh
When to see your doctor
What causes catarrh?
Catarrh can lead to a:
These problems can be frustrating to live with and may affect your sleep, making you feel tired.
Catarrh will often pass in a few days or weeks as the condition that causes it improves. See What causes catarrh? below for more information.
There are things you can try at home to relieve your symptoms, such as:
There are also several remedies, such as herbal medicines , available from health shops and pharmacies that claim to treat catarrh. Some people find these helpful, but there's generally little scientific evidence to suggest they work.
Speak to your doctor if your catarrh persists and is becoming difficult to live with.
If you're diagnosed with a specific underlying condition, treating it may help relieve your catarrh. For example, nasal polyps may be treated with a steroid nasal spray, or in some cases surgery.
Read more about treating nasal polyps .
If a cause for you catarrh cannot be found, the self-help techniques above may be recommended. Unfortunately, however, chronic catarrh can be hard to treat and may last for a long time.
Catarrh is usually caused by the immune system reacting to an infection or irritation, which causes the lining of your nose and throat to become swollen and produce mucus.
This can be triggered by:
It's unclear what causes chronic catarrh, but it's not thought to be the result of an allergy or infection.
It may be related to an abnormality in the way mucus travels within the nose or an increased sensitivity to mucus in the back of the nose and throat.
Important: Our website provides useful information but is not a substitute for medical advice. You should always seek the advice of your doctor when making decisions about your health.