Explanation for Skin Hives
Skin hives are raised, red areas of skin that are usually itchy. They can be various sizes and can occur anywhere on the body. Common areas for skin hives are arms, legs and trunk. They are also called urticaria.
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Signs and Symptoms
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Signs and symptoms of hives include raised red or white welts. You may experience burning, stinging and intense itching. Acute hives can last from less than a day to six weeks. Chronic hives last longer than six weeks.
Causes
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Hives are produced when histamine and other chemicals are released from mast cells. Hives are often caused by an allergic reaction to foods, insect bites or medication. Factors such as heat, cold, stress, exercise and sunlight may also trigger hives.
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Treatment
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Mild cases of skin hives may not require treatment. Over-the-counter antihistamines such as diphenhydramine and loratadine block the production of histamine and may relieve symptoms. For severe cases of hives, your doctor may recommend a prescription-strength antihistamine.
Considerations
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Avoiding triggers may relieve symptoms of hives. Examples of triggers include foods, medications and pet dander. Cool, wet compresses may relieve itching. A bath with baking soda or colloidal oatmeal may also offer relief.
Warning
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Hives are usually harmless, but if you have hives accompanied by difficulty breathing or swallowing, seek medical attention immediately.
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