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What are the symptoms of allergy exist

What are the symptoms of allergy exist

Allergy - a sharp reaction of the immune systemorganism to some substances ( "allergens"). In the role of allergens may be a pollen, various foods and beverages, medicines, dust, animal dander, chemicals, etc.

Allergies can manifest itself as a very weak and very strong, and in some cases even threatening a person's life.

What are the symptoms of allergies

Most often occurs when an allergic reactionirritation of the upper respiratory tract, resulting in coughing, sneezing, runny nose. Often, blush, itch and watery eyes. There is itching, in some cases, appear on the skin rash - hives, eczema.
In the so-called "hay fever" (anothername - "hay fever"), all of these symptoms can occur very often at the same time. In some cases, a person suffers bouts of choking cough as bronchial asthma and nasal breathing becomes virtually impossible due to a bad cold.
When a food allergy to the above features can be added to an upset stomach, nausea, vomiting.
The most dangerous are cases in which allergens causeextremely strong response of the immune system, leading to anaphylactic shock - life-threatening conditions. This usually occurs after an insect bite (bees, wasps, bees, hornets) or receiving drug. But in some cases it may cause shock even become in surface contact with an allergen.
Such a condition can occur as a practicalimmediately after allergen enters the body, and after a few hours. Symptoms of anaphylactic shock: acute pain, severe itching, redness and swelling at the site of the allergen, the rapid spread of itching on other skin areas, difficulty breathing, paleness of the skin and mucous membranes. Quickens the heartbeat, there is a weakness, dizziness. In the most severe cases, convulsions and collapse may occur (acute heart failure). Immediate medical attention.

What is angioedema

Another case of very severe allergic reaction- Angioedema, named for the German physician names, first described this phenomenon. Its symptoms: severe facial swelling (especially in the eyes) and mucous membranes of the upper respiratory tract, making it difficult to breath, and in the most severe cases can lead to death by suffocation. Itching at angioedema absent. Needs immediate intake of antihistamines.
In order not to fall into such a dangerous situation,everyone should know which substances or drugs in his allergy. In summer, when traveling to the country or trips to the country with a need to take a pack of antihistamines. In addition, it is necessary to inform the doctor of any medications cause allergies.

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