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 GP

What causes catarrh?

Content supplied by the NHS Website

Medically Reviewed by a doctor on 13 Dec 2016