Atopic eczema
There are some forms of atopic eczema, for example:
Phthriasis Dawn: They are whitish lesions on the skin scaly and dry skin, may appear on the face or distributed throughout the body.
Cheilitis atopic: Son of eczema lesions on the lips to crack.
Pulpitis atopic: Appears to flaking and cracking of the pulp of fingers and toes.
Causes
The atopic eczema is more common in people with a history of allergic diseases in the family (rhinitis, asthma, eczema and conjunctivitis), also tend to have high IgE, characteristic of patients allergic.
This high IgE can be nonspecific, i.e. is not an allergy to dust mites, pollen or food, or be specific to one or more of them.
This high IgE is usually set to inflammatory cells (mast cells and basophils) and to specific stimuli (food, pollens mites, etc …) or nonspecific (stress, changes in temperature, humidity, irritating the skin) produce the release of histamine accumulated inside the cells that produce itching.
This intense itching starts the sequence of injuries or spontaneous secondary to scratching and therefore form eczema.
In patients with atopic eczema there is a decrease of immunity against certain skin infections why eczema is often secondarily infected and become chronic.
Symptoms
The symptoms characteristic of atopic eczema are:
-Intense itching of skin areas, mainly flexure of the limbs.
-Dry skin and flaking.
-Eczema lesions with erythema flaking, blistering, sweating, cracks, injury scraping and thickened areas (lichenification).
-The distribution of injuries up to the age of onset of eczema and intensity as we have seen before.
Diagnosis
Once characterized as atopic eczema by family history of allergy in the family and for the distribution and symptoms characteristic of this eczema, is seeking the underlying causes of allergy that produces release of histamine.
As a result of the release of histamine is the binding of IgE to different allergens, is due to conduct a study to find out the causes allergy.
In most cases there is the elevation of total IgE in the blood circulating.
From here it should be possible to determine the specificity of allergy to food (egg, milk, fish, fruits, vegetables, nuts, etc. …), mites and pollens techniques for the determination of specific IgE (CAP, etc. …).
You can also test for allergies through the skin prick test.
The goal is to find specific factors that cause allergic itching for exclusion from the patient's environment, for it sometimes must verify the cause subsistence exclusionary effect by adding food, checking the improvement and deterioration to add or remove suspected foods