Allergic rhinitis is a set of symptoms affecting the nose and sinuses. It is usually triggered by allergens such as dust, dust mites or cat and dog hair. It is a very common disorder, affecting between 20-40% of the global population.
Allergic rhinitis
The most important risk factor for allergic rhinitis is the genetic component. Having a first-degree relative affected can increase the probability of suffering from allergic rhinitis by up to 75%.
However, in addition to the above, there are several environmental factors that also contribute to its development, among which the following stand out:
- Having allergies or asthma.
- Suffering from atopic dermatitis or eczema.
- Living in an environment of continuous exposure to allergens, smoke or odors that irritate the nasal epithelium.
- Having a mother who smoked during pregnancy and/or first year of life.
Symptoms
It is usually a chronic condition with symptoms that may appear continuously or be seasonal, triggered by exposure to allergens (pollen, dust mites, pet hair, etc). Symptoms include:
- Runny nose and nasal congestion.
- Itching and redness of the eyes
- Coughing and sneezing
- Itchy nose and throat
- Bluish or swollen skin under the eyes
- Difficulty sleeping and tiredness
Prevention
There is no effective way to prevent the development of allergic rhinitis, although there is a way to reduce the symptoms by avoiding exposure to triggering allergens and taking appropriate medications for its control.
13.5 million variants
35 loci
Bibliography
Dönertaş HM, Fabian DK, Valenzuela MF, Partridge L, Thornton JM. Common genetic associations between age-related diseases. Nature Aging. 2021 Apr;1(4):400-412.
Hay fever. Mayo Clinic [Jul 2022]
Allergic rhinitis. National Health Service in England (NHS) [May 2022]