Eczema Diagnosis

Eczema
Diagnosis

Contact eczema is identified by the fact that the reaction occurs between 12 and 48 hours after the suspect and use a product reproduces the contact area (bracelet, belt, watch, earrings, jewelry, etc.).


But this is not always topographic data (eg, nail polish that triggers a flare of eczema of the eyelids, because the patient often goes hand gestures to face daily).


Allergic eczema is diagnosed based on history and a thorough investigation. Diagnosis is confirmed using skin tests. For this, a number of allergens are used to cover the main substances that cause eczema. Different patches are applied to the skin of the patient (especially the rear), each containing an allergen solution. Patches are maintained 48 hours and results are read after this time. If the skin condition is normal, the test is negative (there is an allergic reaction). If skin is inflamed, the test is positive, the patient is allergic to the product tested. In addition, a positive test is measured according to the intensity of the reaction.