Causes of allergic rhinitis
Every year a growing number of allergic reactions in the population all over the world. Disappointing statistics and allergic rhinitis: every 4-5 people suffering from this disease. This often newly emerged disease remains without the necessary attention and becomes chronic. Among the child population disease occurs in 40%, while the rarely recorded up to 5 years. The most susceptible boys.
Allergic rhinitis occurs when contact with the substance-allergen through the airway. As the stimulus is most often are:
- pollen at flowering plants;
- yeast and molds (so dark spots on the walls in the bathroom are so dangerous);
dusty environment (neglect of wet cleaning the house, library books, dry food for aquarium fish);
- wool (cat / dog, duvets and pillows, carpets);
- insects, mice / rats, cockroaches;
- mites, contained in a large amount in the dust;
- other allergic diseases of the respiratory tract (asthma, polypoid rhinosinusitis);
- Important! Confirmed allergic reaction in parents significantly increases the risk of allergic rhinitis in children.
Symptoms of allergic rhinitis
causes of allergic rhinitis
Unlike the common cold allergic rhinitis occurs suddenly, usually from contact with the allergen to the first manifestations of runs 1-20 minutes.
Signs of an allergic attack:
sudden itchy nose (sensation of tickling, causing a person desire to scratch your nose);
nasal congestion. due to swelling of the mucous;
nasal discharge (often profuse watery);
rarely noticeable dryness of mucous.
The character and appearance of the patient form:
- some swelling of the face;
- mouth breathing;
- often a spontaneous tearing and redness of the eyes;
- for several days (provided that the reaction is not terminated) appearance of dark circles under the eyes.
Classification of allergic rhinitis
rhinitis vary depending on the severity of allergic reactions:
- lightweight – symptoms do not greatly disturb (can manifest symptoms 1-2) do not affect the general condition;
- moderate – symptoms more pronounced, there is sleep disturbances and a decrease in activity during the day;
- heavy – painful symptoms, disturbed sleep, a significant decrease in performance, child school performance deteriorates.
In terms of frequency and duration of displays are distinguished:
Intermittent – acute episodes of illness lasts no more than 4 days. wk., less than 1 month. (Associated with spontaneous hit allergen).
Seasonal Allergic Rhinitis – occurs in the spring and can last all summer long blooms allergenic plant / tree.
Persistent (chronic) – manifested symptoms for more than 2 hours every day and not less than 9 months.. a year, in this case sensitization often caused by allergens which are present in the home.
Chronic allergic rhinitis often changes the severity of the symptoms, but it does not mean facilitating sensitization.
Diagnosis of allergic rhinitis nature
Confirm the allergic etiology of rhinitis following examinations:
blood count (eosinophils – a sign of allergies or helminthic invasion);
a smear from the nasal mucosa (5% eosinophils);
general study of blood IgE (100 IU indicates sensitization).
To identify the specific allergen help research:
skin tests (performed on the background of the abolition of weekly antihistamines);
in-depth study on the IgE (financial costs, are often unreliable);
blood leucosis reaction to food (performed only in specialized clinics, often gives a false result).
Allergic rhinitis – the prerogative of the allergist-immunologist. It is also necessary to consult an otolaryngologist, who may appoint an additional x-rays of the sinuses (with the exception of inflammation in them) and Rhinomanometry.