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Allergies – be careful where you put your mouth

[12 June 2009 - 11h43]

Allergies – be careful where you put your mouth

Do you suffer from itchy lips? It’s almost certainly due to a food allergy.

You can’t think of anything you’ve eaten that could have caused it? But if someone gave you a kiss, that may be enough. That’s right, food allergies can be caused by a kiss, whether you’re kissed on the lips or on the cheek. A person who receives a kiss can develop an allergy to food eaten by the person who kisses them. According to an American study, this is more common than one might expect.

Out of 370 individuals who presented with a food allergy episode, 20, unprompted, reported reactions occurring after being kissed. What were the foods involved? Pecan nuts, peanuts, pistachios and fish. And how did the allergy manifest itself? In the form of urticaria, oedema and respiratory problems … and in some cases, allergic reactions were even considered to be life threatening. So take care. Almost 10% of cases of allergic shock appear to be food based.

Source : New England Journal of Medicine, Vol. 346, N°23

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