Sunday, August 5, 2012

Skin Allergy


Skin allergy is an over-reaction of the skin to a contact with particular substance that your skin is sensitive or allergic to, which is normally harmless to the non-allergic person. People suffering from skin allergies are often allergic to more than one substance. Skin conditions caused by allergies may result in eczema or dermatitis.

The reasons for skin allergies:

Itchy rash is a common symptom for skin allergy.

In fact, the true reason for allergic reaction to some substances or food - is the immune response of over-active immune system.

Normally, the immune system acts as the body's defense against invading agents such as bacteria and viruses. But in the case of an allergic reaction, the immune system is responding to a false alarm.

Allergy develops after repeated exposure to the causative allergen.

When the allergy-prone person first comes into contact with an allergy-causing substance, this allergen is treated by the immune system as an invader and it mobilizes to attack by starting the process of sensitization, that may take up to 6 weeks to develop. During this process white blood cells produce Immunoglobulin E (IgE) antibodies.

In some time on the repeated exposure to the allergen, these IgE antibodies bind the causative allergen and attach to mast cells, that release chemicals known as mediators, including histamine and prostaglandins. These mediators trigger allergy symptoms: histamine stimulates mucus production and causes redness, swelling and inflammation, while prostaglandins constrict airways and enlarge blood vesselsSkin Allergy Treatment

               Skin allergies, or allergic contact dermatitis, are allergies of skin that occur when a substance that a person is allergic to touches the skin, Hemorrhoid Miracle. The symptoms caused by this will appear suddenly and may disappear within half an hour after the attack. Inflammation can occur after being on contact with an item or substance that present no harm at all to people who do not suffer from this allergy. Read treatment reviews if you consider to get a cosmetic skin care procedure.

Symptoms of Skin Allergies

 People suffering from skin allergies may experience the following symptoms during an allergy attack:•Skin rashes

•Blisters on the skin

•A sudden immobility (only in rare cases of extreme allergies of the skin)

•Scaling of the skin

•Hives (a rash looking like raised welts on the skin that itch and occur in batches

The symptoms are mostly experienced on the hands as they get in contact with items and substances all day long, during work or at home.



Types of Skin Allergies

The term eczema is sometimes interchanged with another skin allergy condition; dermatitis. Eczema is actually an advanced type of dermatitis with more serious results.

Allergic contact dermatitis

This skin allergy rash occurs when the skin touches an object or substance that it is allergic to. The symptom (a rash or itch) usually occurs within 30 minutes after touching the object. Inflammation of the skin can occur and the skin must not be scratched or covered with anything when this happens.

Eczema

This is a skin condition causing a red rash and itching on the skin. Eczema skin symptoms can cause a lot of discomfort and the disease is most likely to affect children. Eczema affects approximately seven in a thousand people and most of these patients are children aged between two months and five years old.

Eczema is a form of dermatitis in an advanced stage and can cause blisters and scabs and oozing liquid from the skin. A cure for eczema must be determined by a doctor and experimenting with over the counter treatments that offer relief is not advised when the condition has been diagnosed, especially not with children. Conventional allergy therapies seem to have no to little effect on eczema.


Hives

Skin hives are a type of skin rash that is usually harmless. Caused most of the time by an allergy this rash looks like circular raised welts on the skin that can go red and itchy. The hives will show up in batches and can appear all over the body. Hives can be different in size, ranging from very small to a few centimetres in diameter.

Diagnosis of Skin Allergies

Skin allergies are usually diagnosed by checking for skin rashes, the appearance of skin infection and itchy skin on the usual areas of the skin being mainly the face and chest but possibly also other areas. The doctor will probably check your family history with you to find out if any other relatives have the same problems. He will also review the following with you:•Your diet, to make sure that there are no food allergies involved.

•Allergic tendencies (do you have more sensitive or allergic reactions).

•Prescribed drug intake that may affect the skin.

The doctor might decide to perform a blood test for skin condition called a radio allergosorbent test (RAST. A small amount of your blood is taken after which the blood is mixed with the suspected allergen. Antibodies developing in the blood are a sign of a skin allergy.

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