Catarrh is a build-up of mucus in your nose and sinuses and phlegm in your throat. It usually clears up by itself but see a GP if it lasts longer than a few weeks.

You may get catarrh if you have an infection like a cold, flu or sinusitis.

Symptoms of catarrh include:

• a constantly blocked nose
• feeling like there's a lump or something stuck in your throat
• a frequent need to swallow or cough to try to clear your throat
• a feeling that mucus is slowly dripping down the back of your throat (postnasal drip)
• a crackling feeling in your ears

These symptoms usually only last a few days, but sometimes they can last longer.

Although catarrh can be annoying, phlegm and mucus are not harmful and are the body's way of clearing infection.

It usually goes away by itself, but there are some things you can do to help ease the symptoms.

You could ask a pharmacist about:

• decongestants and other medicines to help relieve catarrh
• salt water nose rinses – you can get several types, including specially designed bottles, nasal sprays and sachets

Find a pharmacy

See a GP if:

A GP may suggest trying treatments for catarrh that you can get from a pharmacist, like decongestant medicines and salt water nose rinses.

If your catarrh is caused by nasal polyps, a GP may prescribe steroid spray or nose drops. If these do not work, surgery may be needed to remove the polyps.

Catarrh is your body's natural reaction to things like infection.

The lining in your nose, sinuses and throat becomes swollen and creates more mucus than normal.

Causes of catarrh include:

• infections like cold, flu and sinusitis
• pollution and cigarette smoke
• allergic reactions to things like pollen, dust and animals
• conditions that affect the nose, such as nasal polyps