Causes of urticaria


Rashes on the body

The main cause of hives is a malfunction of the immune system with its severe reaction to allergens from entering the body. Allergens are various chemical substances, depending on the way of their penetration into the body secrete several groups:

Air allergens – enter the body through the respiratory system by inhalation organs with air, wherein the allergen is suspended as a dust (fine particulates) or aerosol (tiny liquid droplets). These include house dust, pollen during their active flowering (late spring early summer), industrial dust, various household chemicals, which is used as a spray (paint products, deodorants in the form of a spray). These allergens except urticaria can cause symptoms from the respiratory organs – runny nose, sore throat, shortness of breath and paroxysmal spasmodic cough.

Food allergens – enter the body through the digestive system when consuming food. The most powerful food allergens are chocolate, citrus fruits, strawberries, peanuts (peanut butter is one of the most common causes of food allergies). One for food allergens are various medicines for oral administration in the form of tablets, capsules or infusions.
Contact allergens – cause an allergic reaction in humans by direct contact with the skin or mucous membranes. For this type of allergens include animal dander, on the basis of synthetic material, clothes, various chemicals with which the person is contacted by virtue of their professional activity (employees of factories of manufacturers of household chemicals, handling nurses) or at home. This group of allergens often leads to the development of localized processes in the skin – allergic contact dermatitis.

A separate cause of an allergic reaction are the bites of insects, in which the blood protein get foreign substances – stings of bees, ants, hornets. In this case, a significant allergic sensitization can be strongly expressed with loss of consciousness and a progressive fall in systemic blood pressure (anaphylactic shock). Also, as to whether or not transmitted hives healthy people, it is worth remembering that it is not a contagious infectious disease.

Symptoms of hives

Based on the appearance of hives can easily infer the presence of a person allergic reaktsii.Ona is characterized by the appearance on the skin rash in the form of red spots that are a little swollen and protrude from the skin. Outwardly, they look like sting. Also it develops itchy skin, followed by the appearance of scratching. Depending on the flow duration isolated form urticaria 2:

Acute urticaria – pathological symptoms develop in a short period of time (sometimes a few hours), the rash spreads throughout the body, blisters the size may vary, up to several centimeters in diameter and larger. This variant of the disease is often after the ingestion of food allergens. The processing time by an average of a few weeks.
Chronic urticaria – This form of clinical pathology is manifested by gradual appearance of rashes and blisters. pathology for a long (more than a month), chronic with periods of relapse (worsening) and remission (clinical and laboratory improvement). Chronic urticaria often causes functional disorder of the brain in the nervous system against the background of long-term stress, emotional tension or mental fatigue.
Urticaria brings considerable discomfort for the person tends to be a gradual progression of symptoms and the development of other manifestations of allergic reactions.

Urticaria – how to treat?

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Therapeutic measures hives are integrated with the mandatory personal touch. Urticaria Treatment includes the use of multiple events, allowing to reduce allergy:

Diet- is a fundamental exercise, since in most cases the rash is a manifestation of food allergy. Also, some products are potent allergens and trigger hives in the presence of sensitization in the human body to dust, or contact allergens. To reduce the manifestations of disease and its prevention is recommended diet with giving up chocolate, certain kinds of fish, meat, poultry, citrus products, nuts and strawberries. Desirable to take food boiled up to 5 times a day, in small portions.
Limitation of Exposure to allergens – according to the basic compound, which provokes hives limit walking on the street in the spring and early summer during active flowering plants. Apply personal protective equipment (respirators, masks, gloves) when working with a variety of chemical compounds.

Determining whether sensitization to the drug before its application.
With regard to general measures, often the question arises – whether it is possible to wash with hives? In this regard, dermatologists, doctors limit the intake of hot tubs, shower with allergies on the skin is not contraindicated.

To reduce the intensity of the manifestations of urticaria and allergic reactions are used several groups lekartsvennyh resources:

Antihistamines-block the receptors of the body’s cells to histamine. This group of drugs is the mainstay of therapy, they can be used in children in the relevant age dosage (diazolin, suprastin).
Hormonal anti-inflammatory drugs on the basis of the adrenal hormone (hydrocortisone) are only used in adults with pronounced during hives. In the case of a high risk of anaphylactic shock, this group of drugs is also used for children.

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