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Urticaria - Urticaria Learning Centre

Urticaria, hives or nettlerash is a side effect of an allergic reaction rather than a condition. It is characterised by red, very itchy, swollen areas of the skin and occurs when histamines and other inflammatory chemicals are released into the skin. Hives appear suddenly and may leave quickly in 1-2 hours, or can last as long as 24 hours. They often appear in clusters, with new clusters appearing as other areas clear.There are no guaranteed treatments or means of controlling attacks.Most treatment plans for urticaria involve being aware of one's triggers;however,this can be difficult as there are several different forms of urticaria and people often exhibit more than one type.

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Urticaria
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Urticaria

Urticaria, hives or nettlerash, which are a side effect rather than a condition, are red, very itchy, swollen areas of the skin. It is caused when histamines and other inflammatory chemicals are released into the skin. Hives appear suddenly and may leave quickly in 1-2 hours, or can last as long as 24 hours. They often appear in clusters, with new clusters appearing as other areas clear. 20% of the population will suffer at some stage of their lives.

Symptoms
Short-lived raised pink or red swellings, that leave red marks that go if a few days, Itchy and irregular shaped patches, Larger swellings, usually located in the eyelids, lips and the mouth, and hands

Triggers
Infections, such as flu or sore throat, Antibiotics and other medications, Foods such as nuts, fish, eggs, milk, tomatoes, vegetables and berries, Food colourings, Some plants, Animals such as cats and dogs

Treatment
Antihistimines, Oral steroids, Sprays or injections of adrenalin for severe cases.

Tips for Success
- Skin test to diagnose cause where allergy is suspected
- Avoid known triggers
- Keep affected area cool
- Avoid alcohol and spicy foods
- Avoid aspirin