Skin Allergy Expansion

Atopic dermatitis, eczema, urticaria ... Allergic skin manifestations are numerous. Although data are lacking to evaluate the evolution of this problem, the available figures show a boom in this phenomenon.
Just like other atopic manifestations (rhinitis, food allergy ...), skin allergies are increasing. Focus on these French who are bad in their skin.

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Allergic rhinitis

1 - Mechanisms

This is an allergic reaction involving IgE and T helper type 2 lymphocytes. The contact of the nasal mucosa with the allergen causes the release of histamine, leukotrienes, prostaglandins.

2 - Description

Rhinitis manifests as a clear runny nose that can lead to nasal obstruction. It is associated with sneezing. The association with conjunctivitis (red eyes that cry and itchy) is common.
The evolution can be towards asthma or favor the appearance of otitis.
The symptoms can be troublesome enough to alter the quality of life to a level equivalent to that of asthma, upsetting social activities. They can also degrade school performance but the sedative effect of antihistamine drugs can also play.
An allergic cause of rhinitis must be theoretically demonstrated by a skin test (prick test) or by the search for specific immunoglobulin E in the blood. This is rarely necessary in case of seasonal allergy, more in case of perennial rhinitis.

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