What Is Urticaria

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Hives symptoms include localized swelling, burning or stinging sensations, and bumps that go away on their own within 24-48 hours (although new bumps may appear in their place). Many people ask are hives contagious. If you have also asked can you catch hives from someone else then you are certainly not alone. Hives can flare up suddenly. Hives are typically triggered by a histamine release as a result of an allergic reaction. If antihistamines doesn't work, your doctor may prescribe oral corticosteroids. If you suspect you have swelling in your throat due to hives, go to the hospital immediately. Hives can also be triggered by a reaction to medicines like penicillin, antibiotics and painkillers. This appears on the surface of the skin as a result of the body's negative reaction towards specific allergens or sometimes for unidentified reasons. If you experience hives during pregnancy and have symptoms that cause discomfort, you can take an antihistamine without worrying about your unborn child suffering negative side effects. It can develop in small areas of just a few millimeters or occur in patches as large as several inches. Hives can be brought on by stress, change in temperature (both hot and cold) and a number of environmental factors. Antihistamines may treat chronic urticaria. This can be combined with other medications. Sometimes, the cause is difficult to pin down. Allergic reaction hives that appear due to an allergic reaction to a particular food, insect sting or bite or medication can be alleviated with simple over the counter allergy medication such as an antihistamine. Hives are generally based on their time course and cause. Though 'leaky blood vessels' sounds frightening, hives are usually nothing to be concerned about. After an hour of being exposed, physical urticarial hives starts to appear. Certain food preservatives and additives may also trigger hives. Hives are more common in women than men. Hives are usually caused by an allergic reaction, but can also be brought on by stress. Hives themselves are wheals that appear on the skin. They are red, itchy, smoothly elevated areas of the skin which are often blanched at the centre. Hives can show up in clusters and may well change regions that are affected in a matter of hours.

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