what causes hives
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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.
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- Causes of Hives. Hives and angioedema are often allergic reactions. Hives may occur when certain chemicals are inhaled, consumed, injected, or touched. These chemicals can be in the environment, foods, drugs, insects, plants, or other sources. They are harmless in most people.
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What Are Hives and Angioedema? 1 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 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.Fresh foods cause hives more often than cooked foods.. A. A. 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.
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Hives Treatment CenterOver 150,000 patients helped since 2001 This is what causes the hives to appear on your skin, however, more specifically, viral hives are generally caused by a viral infection such as the flu, hepatitis, herpes, croup and many other viral infections. Your immune system is attempting to eradicate these viruses by releasing the histamine that causes your viral hives.
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WHAT DO HIVES LOOK LIKE Physical hives are caused when something stimulates the skin. Most often, physical hives are caused by scratching. This is referred to as dermatographism. Other stimuli that can cause physical hives include heat or cold, sunlight, exercise, pressure or water. (See pictures in above section on what do hives look like). Physical hives are caused when something stimulates the skin. Most often, physical hives are caused by scratching. This is referred to as dermatographism. Other stimuli that can cause physical hives include heat or cold, sunlight, exercise, pressure or water.
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Hives The most common causes of hives are allergic reactions. These can be caused by any allergen you might be sensitive to, including: foods (such as nuts, milk, and eggs)
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- Causes. The welts that come with hives arise when certain cells release histamine and other chemicals into your bloodstream. Doctors often can't identify the reason for this skin reaction, or why it sometimes turns into a long-term problem (chronic hives). But the skin reaction may be triggered by: 1  Pain medications. 2  Insects or parasites. 3  Infection. 4  Scratching. 5  Heat or cold. 6  Stress. 7  Sunlight.
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Hives and Your Skin 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.he 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.
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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.Fresh foods cause hives more often than cooked foods.rticaria, 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.
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Hives Causes of Widespread Hives. 1  Viral Infection. The most common cause of hives all over the body is viral infections. 2  Bacterial Infection. Some bacterial infections can also cause hives. 3  Drug Reaction. An example is a penicillin rash.  Food Reaction. May be an allergy or a 1  coincidence. Bee Sting.
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What are hives, or urticaria? Hives or urticaria are a type of rash consisting of itchy, swollen, red welts. The itching may be mild or severe. Foods, medications, infections, exercise, scratching, alcoholic beverages, emotional stress and many other factors may worsen hives.
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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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Definition Hives are red and sometimes itchy bumps on your skin. An allergic reaction to a drug or food usually causes them. Allergic reactions cause your body to release chemicals that can make your skin swell up in hives. People who have other allergies are more likely to get hives than other people. Other causes include infections and stress. Hives are very common. They usually go away on their own, but if you have a serious case, you might need medicine or a shot. In rare cases, hives can cause a dangerous swelling in your airways, making it hard to breathe - which is a medical emergency.
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- The cause of this type of hives is usually more difficult to identify than those causing acute urticaria. For most people with chronic urticaria, the cause is impossible to determine. In some cases, though, the cause may be thyroid disease, hepatitis, infection, or cancer.
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- Other triggers that may cause hives include: 1  Sunlight. 2  Heat. 3  Cold. 4  Constricting clothing. 5  Anxiety or stress. 6  Exercise. 7  Insect stings/bites. 8  Recent (viral) infections. 9  Contact with chemicals. 10  Scratching your skin.
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What Are the Common Causes of Hives? Food allergies that cause hives can include anything that you're allergic to. The most common suspects are milk, nuts, peanuts, and shellfish. Less common allergies such as cheese, chocolate, eggs, garlic, melons, pork, spices, strawberries, and tomatoes may also be responsible.
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What Are the Common Causes of Hives? Other than stress, the causes of chronic hives are quite different when compared to the causes of acute hives. Allergies only cause about 5 to 10% of chronic hives cases. When allergies cause chronic hives, pet allergy is usually to blame. Pollen, mold or dust mite allergies only rarely cause chronic hives. Chronic infections, such as viral hepatitis, sinus infections, and urinary tract infections, can cause chronic hives. Some studies have shown that infection with Helicobacter pylori, a bacteria commonly connected with stomach ulcers, is also associated with chronic hives.
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Hives Treatment CenterOver 150,000 patients helped since 2001 Hives on face are caused by your body perceiving something your face has come in contact with as being dangerous and thus releases histamine into your face to try to fight off the attack.
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What are hives, or urticaria? Acute episodes of urticaria last for six weeks or less. Acute urticaria can be due to infections foods, medications, insect stings, blood transfusions and infections. The most common cause of hives is infections. Foods such as eggs, nuts and shellfish are common causes of urticaria.Medications such as aspirin and antibiotics (especially penicillin and sulfa) also are common causes of hives.Infections causing hives include the common cold, and other viral infections.he most common cause of hives is infections. Foods such as eggs, nuts and shellfish are common causes of urticaria. Medications such as aspirin and antibiotics (especially penicillin and sulfa) also are common causes of hives. Infections causing hives include the common cold, and other viral infections.
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Causes of Hives in Adults Causes of Hives in Adults. Hives, also called urticaria, appear as itchy, red welts on the surface of the skin and are usually caused by an allergic reaction. Hives in adults start suddenly and go away quickly, can vary in size, appear anywhere on the body, and can move around on the body throughout the course of the reaction. Allergic Reaction.
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What Are the Common Causes of Hives? Allergic Reactions. Allergic reactions, particularly to foods and medications, are another common cause of acute hives. Generally speaking, hives that occur as a result of eating certain foods almost always appear within a few minutes to a few hours of eating the food.
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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.ives, also known as urticaria, are red welts that appear on the skin and are typically caused by an allergic reaction to foods or medication.
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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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Hives and Your Skin 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.he 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.