what type of allergy is hives
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Allergic Reactions Urticaria, or hives, is characterized by itchy, red bumps that can occur in clumps and be either large or small. Hives are often triggered by certain foods or medications. Allergic conjunctivitis, or eye allergy, occurs when the eyes react to allergens with symptoms of reddening, itching and swelling.
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Allergies Hives are raised bumps, called welts or wheals, on the skin. Hives can be small or large and can occur anywhere on the body. Hives are itchy. Hives can occur due to an acute allergic reaction to an allergen. Hives can be one sign of an allergic reaction or hives can be one of many signs of an allergic reaction. Hives can occur during severe allergic reactions known as anaphylaxis (anna-fih-LACK-sis).
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Hives Hives, also known as urticaria, are red welts that appear on the skin and are typically caused by an allergic reaction to foods or medication. They may appear like a normal skin rash that is slightly raised, forming in large patches. Hives may also connect to one another, giving the appearance of very large welts on the affected area.
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Hives Treatment CenterOver 150,000 patients helped since 2001 Hives are a skin rash condition known medically as urticaria. Hives are a type of skin allergy or rash that is caused by an allergen in most cases. Hives are raised welts on the skin’s surface that are generally circular with a pale center and red halo.
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Hives Unfortunately, in some people, the histamines can cause swelling, itching, and many of the symptoms that are experienced with hives. In terms of allergens, hives can be caused by factors such as pollen, medications, food, animal dander, and insect bites.
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Hives Hives frequently occur following an infection or as a result of an allergic reaction such as to medication, insect bites, or food. Psychological stress, cold temperature, or vibration may also be a trigger. In half of cases the cause remains unknown. Risk factors include having conditions such as hay fever or asthma. Diagnosis is typically based on the appearance.
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Hives | Causes, Symptoms, Pictures, & Treatment Hives Definition. Hives (also called urticaria) is a condition that causes a noticeable skin rash with itchy, raised, pale red bumps. Hives are the result of allergic triggers in most cases. Other names for hives include welts, nettle rash, wheals, heat rash. There are 2 classifications of hives: acute and chronic.
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What are hives? Hives, or urticaria, are a common allergic reaction in which a rash or welts appear on the skin. Hives are typically quite itchy and can last just a few minutes or several days before going away. Occasionally, however, these annoying blotches can indicate more serious problems, especially when accompanied by symptoms such as difficult breathing.
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Hives Treatment CenterOver 150,000 patients helped since 2001 Hives are most commonly caused by  an allergic reaction in which your immune system releases histamine into the bloodstream to fight the allergen. In essence, your immune system thinks there is a foreign substance (called allergens) in your system, and tells the body to release histamine to fight it off.
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- Itching is the most common symptom of hives, although some people report that hives cause a stinging or burning sensation. Hives are a very common reaction to all kinds of stimuli. While an allergic reaction can be a cause of hives, in the majority of outbreaks, the exact cause of hives is not known. Hives are also known as urticaria. Hives form when a chemical called histamine is released by specialized cells known as mast cells.
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Hives and Your Skin Acute urticaria: Hives lasting less than six weeks. The most common causes are certain foods, medications, or infections. Insect bites and internal disease may also be responsible. The most common foods that cause hives are nuts, chocolate, fish, tomatoes, eggs, fresh berries, and milk.
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Hives The cold type of urticaria is caused by exposure of the skin to extreme cold, damp and windy conditions; it occurs in two forms. The rare form is hereditary and becomes evident as hives all over the body 9 to 18 hours after cold exposure.
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- Hives are also known as urticaria, welts, wheals, or nettle rash. It is a red, raised, itchy skin rash that is sometimes triggered by something that produces an allergic reaction-an allergen. When there is an allergic reaction the body releases a protein called histamine.
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Symptoms & Types Hives, also known as urticaria, are an outbreak of swollen, pale red bumps, patches, or welts on the skin that appear suddenly -- either as a result of allergies, or for other reasons.
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Hives Hives are usually caused by an allergic reaction to something that you have encountered or swallowed. When you have an allergic reaction, your body begins to release histamines into your blood. Histamines are chemicals your body produces in an attempt to defend itself against infection and other outside intruders.
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Common symptoms of allergy Hives could be both allergic and non-allergic and is very common. Allergy is a more common cause of hives in children than in adults. In addition to allergy to foods or other substances like drugs, hives may be triggered by direct physical stimulation such as temperature extremes, water, sun, and physical exercise. Viral infections and stress can also cause an outbreak of hives.
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- Acute urticaria: Hives lasting less than six weeks. The most common causes are certain foods, medications, or infections. Insect bites and internal disease may also be responsible. The most common foods that cause hives are nuts, chocolate, fish, tomatoes, eggs, fresh berries, and milk.Fresh foods cause hives more often than cooked foods.ives usually cause itching, but may 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 eraser to a dinner plate), and may join together to form larger areas known as plaques.
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Symptoms & Types Hives, also known as urticaria, are an outbreak of swollen, pale red bumps, patches, or welts on the skin that appear suddenly -- either as a result of allergies, or for other reasons. Poison ivy, poison oak, and poison sumac are plants that contain an irritating, oily sap called urushiol. The most common causes are foods, medicines, latex, or infections. 2  Insect bites and internal disease may also be responsible. 3  The most common foods that cause hives are nuts, chocolate, fish, tomatoes, eggs, fresh berries, soy, wheat, and milk.
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Hives 1 Other substances that can cause hives and angioedema include pollen, animal dander, latex and insect stings. 2  Environmental factors. 3  In some people, environmental factors can stimulate release of histamine. 4  Examples include heat, cold, sunlight, water, pressure on the skin, emotional stress and exercise.
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- Most often, people get hives as part of an allergic reaction. Hives also can be the body's way of reacting to temperature extremes, stress, infections, or illnesses. The red blotches happen when cells in the bloodstream (called mast cells) release the chemical histamine.
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- Some causes of allergic hives are: 1  Foods - any food, but especially eggs, nuts or shellfish. 2  Medicines. 3  Animals. Plants - grass and weeds.  Insects - stinging and biting 1  insects. Soaps - lotions and laundry detergents.
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- A. Hives, also known as urticaria, are an outbreak of swollen, pale red bumps, patches, or welts on the skin that appear suddenly -- either as a result of allergies, or for other reasons.
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Hives In Teenagers Hives in teenagers are caused by a variety of factors, essentially the same factors that trigger hives in other age-groups. Teenagers are susceptible to seasonal allergies and to autoimmune conditions. They also get bacterial and viral infections and react negatively to certain medications, foods and food additives.
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Hives They are usually an allergic reaction to food or medicine. They can also appear without cause. When you have an allergic reaction to a substance, your body releases histamine and other chemicals into the blood. This causes itching, swelling, and other symptoms. Hives are a common reaction. Persons with other allergies, such as hay fever, often get hives. When swelling or welts occur around the face, especially the lips and eyes, it is called angioedema. Swelling can also occur around your hands, feet, and throat.
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Hives and Your Skin Urticaria, also known as hives, is an outbreak of swollen, pale red bumps or plaques (wheals) on the skin that appear suddenly -- either as a result of the body's reaction to certain allergens, or for unknown reasons. Hives usually cause itching, but may 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 eraser to a dinner plate), and may join together to form larger areas known as plaques.
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Hives When you have an allergic reaction to a substance, your body releases histamine and other chemicals into the blood. This causes itching, swelling, and other symptoms. Hives are a common reaction. Persons with other allergies, such as hay fever, often get hives. When swelling or welts occur around the face, especially the lips and eyes, it is called angioedema. Swelling can also occur around your hands, feet, and throat.