Hives and angioedema : how to be

Hives and angioedema : how to be
allergic reaction is not only unpleasant, but also can be dangerous at high doses of allergen.What are urticaria and angioedema.

hives (urticaria, urticaria) - a skin disease, mainly allergic origin, the main symptom is the sudden emergence on the swollen skin, severely itchy blisters pale pink flat.

rash can occur on any part of the body, including the face, trunk, extremities, lips, tongue and throat or ears.Blisters can be a different size from a grain of rice to a tea saucer.The blisters may merge, forming a very large pockets.Symptoms are held from a few hours to several days.

Angioedema (angioneurotic edema) - response (usually allergic) to the impact of a variety of biological and chemical substances.Its main symptoms are swelling of the lips, the cheeks, the skin around the eyes, hands, feet and the vulva.Changes can be stored up to several days, greatly changing the appearance of man.In severe cases, there is swelling of the tongue, throat, or lungs, which violates the patency of the airway

and breathing.This situation can be life threatening and requires urgent treatment.

reason urticaria and angioedema

urticaria and angioedema are caused by the action of histamine.Histamine - active substance secreted by special cells located along the subcutaneous blood vessels.It increases the permeability of small blood vessels, causing them to exit from the liquid portion of blood and the formation of edema.

Histamine is released during allergic reactions to insect bites, exposure to sunlight, chemicals, food and pharmaceuticals.Sometimes the exact cause of hives can not be identified.

Types of urticaria and angioedema

  • Acute urticaria and / or angioedema rash and swelling persist for at least six weeks.Most often it occurs under the influence of food, medicines, latex, or infectious diseases.The cause may also be insect bites and internal diseases.Among the products acute urticaria and / or angioedema can cause nuts, chocolate, tomatoes, eggs, fruit, milk, wheat, soy, and food additives and preservatives.And on the raw food body reacts stronger than machined.Among the medicines for developing urticaria respond drugs such as aspirin and other nonsteroidal anti-inflammatory drugs, drugs to lower blood pressure (ACE inhibitors) and painkillers.
  • Chronic urticaria, rash and swelling persist for more than six weeks.The reason for such a reaction is not easy to establish.The reasons may be like all the above factors, as well as autoimmune, hormonal disorders, chronic infections and malignancies.
  • Physical urticaria rash occurs as a result of direct physical effects on the skin.It may be cold, high temperature, sun, pressure, vibration, sweating and exercise.Thus rash typically appears directly at the site of exposure to the skin, rarely spread to other parts of the body.Most often, urticaria occurs within an hour of exposure to irritant factors.
  • dermographism urticaria (autografizm): rash appears after pressing or on the skin of any object (such as a nail).Often combined with an acute or chronic urticaria.
  • Hereditary Angioedema: characterized by periodically arising skin swelling and mucous membranes of various organs (respiratory, urinary tract, gastrointestinal tract).Inherited.

Diagnosis of urticaria and angioedema

In order to identify the possible cause of rash and edema, the doctor conducts a thorough survey of the patient, wondering at the same time not only the symptoms and signs of disease, but also eating habits, peculiarities of work (whether the impact has ANY KINDor irritating substances or physical agents), as well as diseases of the family members.

Usually, diagnosis involves a therapist, an allergist, immunologist and dermatologist.

To detect allergens are appointed by skin tests.In addition, conducted blood tests and other laboratory tests to assess overall health and identify any systemic diseases.

Treatment of urticaria and angioedema

  • Identify the cause of the allergic reaction and its elimination.
  • Antihistamines (used for the prevention of hives and swelling).Often used in chronic course of the disease in combination with other drugs.
  • With the ineffectiveness of such treatment can be prescribed corticosteroids.

Reduce symptoms

  • Avoid hot showers, baths and saunas (only bathe in warm water).
  • Use a mild soap (such as children), do not use gels with a pungent odor.
  • on the affected skin area, apply a cold compress or wet soft cloth.
  • Work and sleep in a cool room.
  • Wear lightweight and loose-fitting clothing.
  • Less sweat (sweat irritates the skin).

Symptoms that require calling a doctor

  • dizziness;
  • wheezing;
  • difficulty breathing;
  • sense of constriction in the chest;
  • swelling of the tongue, as well as a strong swelling of the lips or entire face.

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