Revista alergia Mexico (Tecamachalco, Puebla, Mexico : 1993)
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Chronic urticaria may be continuous or recurrent according to its form of appearance. Within the diseases associated to chronic urticaria there are mycosis, parasitism and bacterial infections where Helicobacter pylori stands out. This has been related to the allergic diseases promoting a Th2 response. ⋯ The high frequency of infection caused by Helicobacter pylori in the patient with chronic urticaria suggests a possible role in its etiopathogeny, extending the therapeutic possibilities.