When coming into contact with human skin to certain irritating substances and various external factors, it may be exposed to skin injuries, some of which are the nature of the immune and other non-immunological, and within the first type is contact dermatitis, what are the causes of infection?.
Explains by professor of respiratory diseases that chemicals is one of the most important allergen in the case of inflammation plea When exposed human skin of one of these chemicals, they quickly combine with proteins layer of the epidermis, which is the outer layer of the skin and begin a series of immune reactions, leading to inflammation and damage cell layer of the skin and the tissue beneath.
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The rash looks like a red rash, eczema, accompanied by swelling of the skin and tissue granules and pustules may and secrete fluid, and the patient suffers in this case of severe itching, and over time may dry up pimples and vesicles show place husks As if it becomes a chronic rash, the skin is exposed to the so-called hyperkeratosis, and cracks appear on the surface.
It is noted that the rash is different in appearance and location on the skin depending on the chemical allergens and the place where it touches the skin constantly.
Most of the chemicals that cause this type of sensitivity commonly used in our daily lives, and in many different industries as industry cosmetics and pharmaceutical industries
The chemicals that are added to the types of soap used in washing clothes, cooking utensils and cleaning floors or in the emergence of infections they cause allergies fingers, and suffer Housewives of these infections, which can be painful and accompanied by severe itching. Linda Allen Review http://fitness2edu.livejournal.com/
There are also types of ornaments which adorned women such as bracelets and contracts made of different metals cause allergic rash behind the ears or around the wrist or neck.