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Chronic Urticaria
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Causes of Chronic Urticaria

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Given the similarity of the symptoms with an allergic reaction, it is often thought that its appearance is due to an external cause, although in the majority of chronic urticaria cases, no external trigger is identified.   

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What is an allergy?

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Substantiated information by:

Paula Ribó Gonzalez

Published: 25 May 2020
Updated: 25 May 2020

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