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Non-allergic rhinitis happens when the inside of your nose becomes irritated, causing a blocked or runny nose. It can be treated with medicines from a pharmacist or GP.

The most common symptoms of non-allergic rhinitis are:

• a blocked or runny nose
• sneezing
• an itchy nose
• a reduced sense of smell

Sometimes non-allergic rhinitis can also cause a crust to form inside the nose. This may have a bad smell and bleed if you try to remove it.

Common causes of non-allergic rhinitis include:

• having a cold
• changes in the weather, such as temperature or humidity
• exercising
• smoke, perfume and paint fumes
• alcohol and spicy food
• hormone changes in pregnancy or puberty, or from taking medicines such as hormone replacement therapy (HRT) and the contraceptive pill
• conditions such as an underactive thyroid (hypothyroidism)
• medicines such as ACE inhibitors, beta blockers, aspirin and anti-inflammatory painkillers like ibuprofen
• using decongestant nasal sprays too often

Non-allergic rhinitis is different from allergic rhinitis, which is caused by allergies such as hay fever.

Non-allergic rhinitis is not harmful, but it can affect your life.

You can often treat it without seeing a GP.

Try to avoid the things that trigger your symptoms, if you can.

A pharmacist can advise you about medicines that can help, such as:

• antihistamines
• nasal sprays to unblock your nose
• salt water nasal sprays or solutions to rinse out the inside of your nose

You can buy nasal sprays without a prescription, but they should not be used for more than a week. Using them for longer than this can make the problem worse.

Find a pharmacy

If you have a high temperature or you do not feel well enough to do your normal activities, try to stay at home and avoid contact with other people until you feel better.

See a GP if:

Non-allergic rhinitis often gets better on its own without any treatment.

If needed, a GP may prescribe stronger medicine, such as prescription nasal sprays.

They may also change any medicine you're taking if they think it may be causing your symptoms.

You may be referred to a specialist for further tests and treatment if it's not clear what's causing your symptoms or they're severe.