Redness, swelling localized more or less extensive, oozing vesicles then forming scabs, accompanied by itching often fierce. These symptoms describe contact eczema.
Dozens of industrial products can be involved in triggering a surge. Awareness is more or less fast, from a few days to several months or years. Then the first push appears.
The manifestation of eczema may require the impact of sunlight on the skin. This is photoallergy.
The main people responsible
Eczema There are families of particularly allergenic products. The discovery and management of a professional allergy are in the field of occupational medicine.In the case of contact eczema
The main metal compounds involved are chromium, mercury and nickel. Occupational dermatitis is common among bricklayers, cementists, metallurgists and laboratory technicians. We must also pay attention to jewelery alloys. A suppuration of the earlobe is often due to a superinfected allergic intolerance;The chemical components of clothing can also be responsible for allergies: tanning products, rubber elastics, dyes, small metal parts, etc ...
The cleaning products cause the eczema of the housewives: detergents, detergents, strong soaps and sometimes the water itself. Gloves and sweating aggravate skin reactions in these cases.
Some pharmaceuticals used locally are allergenic: antibiotic ointments, antihistamines, local anesthetics. These allergies are common;
Perfumes (bergamot) and cosmetics are readily allergenic: various creams, varnish. We must also pay attention to the deodorants in sprays, whose effects can be masked by the pilosities;
Plants such as ambrosia and sumac are responsible for contact allergies;
Latex finally has sometimes formidable effects, especially in medical settings.
In the case of photosensitivity
Allergy occurs in the sun, for locally applied products and may also reveal delayed allergy to ingested or injected substances.The products and substances involved are:
Antibiotic drugs such as sulfonamides or certain tetracyclines, diuretics, anxiolytics;
Local anti-moth products (griseofulvin), oils and fragrances, sunscreens, toiletries.
What to do when in doubt
The situations are extremely varied.The complete lists of professional dermatological pathologies allow their classification and their management.
For the "civil" origins of contact eczema, it is necessary:
Make a personal inquiry;
Test the effect of stopping the suspected product;
Have an allergic assessment done. Skin and blood tests, very numerous, can precisely target the culprit or culprits.







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