Rhinitis, allergic

Allergic rhinitis is a condition in which an allergen (something that causes an allergic reaction) makes the inside of your nose swell or become inflamed. This can cause cold-like symptoms, such as sneezing, itchiness and a blocked or runny nose.

Allergic rhinitis is one of the most common conditions in the UK. Studies estimate that more than 30% of people experience the condition at some point in their life.

Hay fever is a type of allergic rhinitis that is caused by pollen. Allergic rhinitis may also be caused by other allergens, such as house dust mites or animal fur. See Allergic rhinitis – causes for more information.

Some people only experience allergic rhinitis for a few months at a time because they are sensitive to allergens (such as tree or grass pollen) that are only produced at certain times of the year. Others experience the condition all year round, because they are sensitive to non-seasonal allergens, such as animal fur.

Outlook

Allergic rhinitis is not usually harmful, but the symptoms can be irritating and affect your quality of life. Identifying the allergen that causes your rhinitis and, if possible, avoiding it is an important first step in managing the condition effectively.

Once diagnosed, mild cases of allergic rhinitis can usually be treated using over-the-counter medicines. However, more serious cases may require treatment with a corticosteroid nasal spray or antihistamines prescribed by a GP. See Allergic rhinitis - treatment for more information.