Food allergy

* temporal relation between ingestion of a suspected food and onset of allergic symptoms.
* positive prick skin test or in vitro test to a suspected food allergen confirmed by a double-blind, placebo-controlled food challenge.
the highest prevalence of food allergy is found in children with moderate to severe Atopic dermatitis. Children with asthma have been found to have food-induced wheezing in some studies.
Clinical:
-most reactions to foods occur minutes to 2 hours after ingestion.
- hives, flushing, facial angioedema , and mouth or throat itching are common.
- anaphylatoid reactions can occurs after ingestion of foods such as certain fish containing high amounts of histamine.
Treatment:
- eliminating and avoiding foods