Gentowa

The typical symptoms, i.e. the itchy papules appear fast. They develop themselves even after several hours since the allergy reaction start (after allergen food consummation, after insect sting, medication administration, etc.). They can persist on the same place for hours, disappear later on, but usually, reappear elsewhere.

If the state of health lasts for a long time, the symptoms might not be caused by the IgE antibody mediated allergy. We should take into account even the immunocomplex reaction (III.type) or other diseases, as well.

The urticaria can reappear after a shorter or longer period of time. It can be also the episode, from which the patients do not have to suffer for years.

The acute urticaria lasts several hours; hence the total time of the particular episodes should not overrun 6 weeks.

The chronic urticaria takes more than 6 weeks. It can last for months or years. In this case, the atopic process should be excluded.

What causes the urticaria?

The most frequent allergy reaction causes, which lead to the urticaria, include:

● medications: usually antibiotics, although the reaction can occur after any medication

● food: including small amounts of chocolate, fish, nuts, eggs, etc.

● bee or wasp sticks

The significant part of the urticaria symptoms do not belong to the allergic reaction. The mediators – the one, who are released during the allergic reaction, can be released even in other ways (we talk about the pseudo-allergic reaction). The urticaria can appear even after the first contact with the person having the irritating factors.

Tags: , acute urticaria, chronic urticaria, hives sypmtom, nettle rash, urticaria

This entry was posted on Monday, March 17th, 2008 at 12:00 pm and is filed under Diagnosis, Illness, Skin, Symptoms. You can follow any responses to this entry through the RSS 2.0 feed. Responses are currently closed, but you can trackback from your own site.