Chronic urticaria is a condition that causes hives to develop on the skin. The skin reaction is characterized by pale and slightly raised wheals or swelling, which is often surrounded by redness with borders that are clearly defined. Commonly the skin condition is triggered by insect bites, stings from bees, or foods such as nuts, peanuts, shellfish, or eggs.
The hives may cause itching. Angioedema causes swelling of the larger tissue areas under the skin. Sometimes the hives will develop on the throat and face. This condition causes swelling of the airways, throat, and face.
If stings or insect bites trigger these reactions it is important to see your doctor right away. Your doctor may prescribe antihistamines to treat mild symptoms. If the chronic urticaria develops into angioedema you may find swallowing difficult, which requires immediate emergency treatment.
Sometimes urticaria and angioedema may develop at the same time, which means that the condition may become severe. Triggers such as insect bites, drugs, allergy or allergen injections, stings, or foods, such as fruits, nuts, shellfish, or eggs may cause the development of both angioedema and urticaria. People who eat a large amount of strawberries may develop hives.
Hives may also develop from viral infections, such as hepatitis, German measles, and mononucleosis. In a few short weeks or months, the condition can become chronic. Sometimes the cause is undetermined. Doctors suggest that it may result from dyes in food, preservatives in food, penicillin in milk, and other factors. People who suffer with autoimmune thyroid disorders may develop hives.
Aspirin, or other drugs such as NSAIDs (nonsteroidal anti-inflammatory drugs) may cause chronic angioedema or hives. If the condition develops without hives present, it may link to genetic causes.
Symptoms may include itching and the development of wheals at a rapid pace. Wheals often are small, but sometimes become larger. The wheals may appear like rings of redness with pale middle areas. Crops of the hives may appear and disappear. You may notice one spot for a few hours, and it may disappear.
Angioedema may affect the genital area, lips, tongue, eyelids, feet, and hands. In some cases, the hives may appear in the throat or lining of the mouth, and cause the airway to swell. Breathing may become difficult. Most times the condition appears and disappears and treatment may not be necessary. If a person is stung by a bee, however, and hives develop, it is important to seek medical attention right away.
If you suspect the condition develops from eating peanuts, nuts, strawberries in large amounts, or other causes, you should stop this behavior right away. Chronic urticaria should be treated immediately.
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