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Food Allergies

Food Allergies

My 18-month-old son has had a diaper rash, with no other symptoms, within a few days of eating a poached egg on 3 separate occasions.

At his first well-child visit after a family move, an 8-year-old boy was noted to have bilateral erythematous plaques on the surfaces of his hands and feet. Mother reported that the condition had been present since he was 2 or 3 months old. Patient’s father and other male relatives on the paternal side (uncles, grandfather, great-grandfather) were similarly affected. No other associated symptoms, such as hyperhidrosis, reported. The child did not have a history of eczema, asthma, or food allergies; however, he did have a history of allergic rhinitis and occasional pruritus.

Allergy testing can aid the diagnosis of allergic disorders; however, it is not diagnostic. With skin testing, in particular, a positive result does not necessarily indicate clinical allergy, and a negative result does not always exclude clinical relevance.

Episodic right-sided facial flushing was noted in a 2-month-old girl born at full term via forceps-assisted vaginal delivery. The erythema appeared within minutes of latching onto her mother’s breast and resolved within 5 to 10 minutes after breastfeeding. The episodes of flushing had begun a week before the clinic visit; there were no collateral symptoms of anaphylaxis. Because food allergy was suspected, the mother had eliminated all dairy products from her diet.

A 5-month-old Asian boy was brought for evaluation of hair loss and a red, scaly rash on the scalp and body. The rash had not responded to hydrocortisone 2.5% ointment. There was a family history of asthma, food allergies, and allergic rhinitis. His mother had Hashimoto thyroiditis.

Twenty-two-month-old girl seen in the emergency department (ED) after several hours of abdominal pain associated with non-bloody, non-bilious emesis. Over past 2 months, has had 7 or 8 similar episodes of abdominal pain followed by emesis 1 to 2 hours later.

With the banning of peanut butter and jelly from some
school cafeterias, peanut allergies have become a popular
topic in the media and the public. Discussions often
include references to an increasing prevalence of
allergies, as well as to an earlier emergence of those
allergies in children.


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