HIVES , CAUSES , AND TREATMENT
Urticaria is also called hives, swelling burst, pale red bumps or plaques (wheals) on the skin that appear suddenly - as a result of the body's reaction to certain allergens, or for unknown reasons.
Hives usually cause itching, but can also burn or sting. They can appear anywhere on the body, including the face, lips, tongue, throat, or ears. Hives vary in size (from a pencil to the plate rubber), and can meet to more areas called plaques. They can last for hours, or up to one day before he disappeared.
Angioedema is like hives, but the swelling occurs beneath the skin, rather than on the surface. Angioedema is characterized by deep swelling around the eyes and lips and sometimes genitals, hands and feet. Generally it lasts longer than urticaria, but the swelling usually goes away in less than 24 hours.
May rarely angioderma of the throat, tongue, lungs or block the airways, causing breathing difficulties. This can be life-threatening.
What are the causes of urticaria and angioderma?
allergic urticaria and angioderma form when, in response to histamine, blood plasma leaks out of small blood vessels on the skin. Histamine is a chemical released from specialized cells along the skin blood vessels.
Can cause allergic reactions, chemicals in foods, insect bites, exposure to sunlight, or medications can all cause the release of histamine. Often it is impossible to know exactly why hives have formed.
types of urticaria, including:
Acute urticaria:
Hives length of less than six weeks. The most common causes of certain foods, medications, or infections. Can insect bites and internal diseases responsible.
The most common foods that cause hives nuts, chocolate, fish, tomatoes, eggs, fresh berries and milk. Fresh foods cause hives more often than cooked foods. Some additives and preservatives also to blame.
Among the drugs that can cause hives and angioedema aspirin and other anti-inflammatory drugs such as ibuprofen, medications for high blood pressure (ACE inhibitors), or painkillers such as codeine.
Chronic urticaria and angioedema:
hives lasting longer than six weeks. The cause of this type of hives is usually more difficult to identify those who argue acute urticaria. For the majority of people with chronic hives, the cause can not be determined. In some cases, however, it could be the cause of thyroid disease, hepatitis, infections or cancer.
Treatment
The best treatment for hives and angioedema to identify and remove the trigger, but this is not an easy task. Antihistamines are usually prescribed by the doctor to provide relief from symptoms. Antihistamines work best if taken at regular intervals to prevent hives from forming in the first place.
chronic urticaria may be treated with antihistamines or a combination of drugs. When antihistamines do not provide relief, oral corticosteroids may be prescribed. A biological drug, omalizumab (Xolair), also approved for the treatment of chronic urticaria in at least 12 years.
For severe hive or angioedema outbreaks, it may require the injection of epinephrine (adrenaline) or a cortisone medication.
Urticaria is also called hives, swelling burst, pale red bumps or plaques (wheals) on the skin that appear suddenly - as a result of the body's reaction to certain allergens, or for unknown reasons.
Hives usually cause itching, but can also burn or sting. They can appear anywhere on the body, including the face, lips, tongue, throat, or ears. Hives vary in size (from a pencil to the plate rubber), and can meet to more areas called plaques. They can last for hours, or up to one day before he disappeared.
Angioedema is like hives, but the swelling occurs beneath the skin, rather than on the surface. Angioedema is characterized by deep swelling around the eyes and lips and sometimes genitals, hands and feet. Generally it lasts longer than urticaria, but the swelling usually goes away in less than 24 hours.
May rarely angioderma of the throat, tongue, lungs or block the airways, causing breathing difficulties. This can be life-threatening.
What are the causes of urticaria and angioderma?
allergic urticaria and angioderma form when, in response to histamine, blood plasma leaks out of small blood vessels on the skin. Histamine is a chemical released from specialized cells along the skin blood vessels.
Can cause allergic reactions, chemicals in foods, insect bites, exposure to sunlight, or medications can all cause the release of histamine. Often it is impossible to know exactly why hives have formed.
types of urticaria, including:
Acute urticaria:
Hives length of less than six weeks. The most common causes of certain foods, medications, or infections. Can insect bites and internal diseases responsible.
The most common foods that cause hives nuts, chocolate, fish, tomatoes, eggs, fresh berries and milk. Fresh foods cause hives more often than cooked foods. Some additives and preservatives also to blame.
Among the drugs that can cause hives and angioedema aspirin and other anti-inflammatory drugs such as ibuprofen, medications for high blood pressure (ACE inhibitors), or painkillers such as codeine.
Chronic urticaria and angioedema:
hives lasting longer than six weeks. The cause of this type of hives is usually more difficult to identify those who argue acute urticaria. For the majority of people with chronic hives, the cause can not be determined. In some cases, however, it could be the cause of thyroid disease, hepatitis, infections or cancer.
Treatment
The best treatment for hives and angioedema to identify and remove the trigger, but this is not an easy task. Antihistamines are usually prescribed by the doctor to provide relief from symptoms. Antihistamines work best if taken at regular intervals to prevent hives from forming in the first place.
chronic urticaria may be treated with antihistamines or a combination of drugs. When antihistamines do not provide relief, oral corticosteroids may be prescribed. A biological drug, omalizumab (Xolair), also approved for the treatment of chronic urticaria in at least 12 years.
For severe hive or angioedema outbreaks, it may require the injection of epinephrine (adrenaline) or a cortisone medication.
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