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This page/column contains information which may be of interest to consumers. The information is based on articles which appear in Australian Prescriber. As Australian Prescriber is written for health professionals, you should discuss any issues raised by this page/column with your doctor or pharmacist. They will be able to give a more detailed answer to your questions by reading the main article.

Australian Prescriber is unable to comment on individual cases or give second opinions.

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Australian Prescriber Vol. 24 No. 5 2001

Treatment of urticaria

Urticaria or hives result from the release of a chemical called histamine inside the body. This release of histamine is often caused by an allergic reaction. For example people who are allergic to nuts or shellfish will get hives if they eat these foods. Some people have this reaction to pressure, cold or vibration.

The rash is made up of wheals (bumps). These are very itchy. In some cases the skin swells. This swelling is very dangerous if it constricts the windpipe.

People should try to avoid things they are allergic to. If a reaction occurs many people will get relief by taking an antihistamine. Some antihistamines will make you drowsy so they can affect your driving.

If antihistamines do not control the rash, other drugs such as steroids may be needed.

See also
http://www.allergy.org.au
and
http://www.allergy.org.au/aer/infobulletins/urticaria.htm