Urticaria causes, symptoms and treatment Urticaria is one of the most common allergic skin diseases. And occur due to exposure to an allergen. And often affects only a Urticaria skin causing a characteristic rash in any part of the body with an intense itching that increase the situation worse. Causes of urticaria: There is a lot of allergens, but the majority of cases the cause is unknown. And from these causes: Some foods, such as milk and milk products, eggs, fish, shrimp, bananas, mango, strawberry, chocolate. And also preservatives and Flavors of color in preserved foods. Some medications, such as aspirin, penicillin, sulfa, serum tetanus. Inhalation of air by flying pollen. Infection with certain parasites and microbes. The bites of insects such as ants. Perfumes and cosmetics. Stress may be the main reason for the occurrence of urticaria or worse than the situation that already exist. And urticaria can be divided into two types depending on the period of rash: - Acute urticaria: lasts for less than 6 weeks. About 50% of cases, the allergen is known. - Chronic urticaria: lasts for more than 6 weeks. Occur in at least 0.1% of the people, and be more prevalent in women and in Advanced Age. Symptoms of urticaria: - When a person is exposed to the substance causing the allergy has for the first time in his life, the immune system begins to form antibodies to this article, and the person does not get any symptoms. And when exposed to this material again, they react with antibodies that have already been formed. And this leads to the secretion of chemicals, most notably substance histamine and acetyl Colin and that lead to a widening in capillaries composed rash, with some swelling, which makes skin rash, up slightly from the rest of the skin. - And thus appear in the form of urticaria parts red, slightly raised above the surface of the skin, accompanied by intense itching. And rash appears suddenly and disappears without leaving any traces on the skin to appear in another part of the skin. - And in very few cases occur the so-called Angioedema, which is one of the types of severe urticaria that occurs suddenly and accompanied by swelling of the eyes and lips and hands and genitals. And sometimes accompanied by shortness of breath and low blood pressure. And can lead to death if not treated quickly. Treatment of Urticaria: Non-drug treatment: Avoid allergens. Shower with cold water and hot water and avoid excess heat to reduce the itching. Drug therapy: Antihistamines. Moisturisers localized to the skin in the form of lotion or cream. Most cases, the rash disappears within 24 hours of starting treatment. And must continue treatment for at least two days after the disappearance of the rash is then gradually reduce the dose of treatment. In severe cases not responding to treatment. Your doctor to give cortisone. In the case of Angioedema should quickly give the epinephrine injection and cortisone.