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Instead, doctors usually rely on the safer skin ***** test, in which a tiny dose of peanuts gets injected under the skin to see if a hive forms.
This test isn't very precise, though. According to a 2001 study from Clinical and Experimental Allergy, only 40 percent of children with even strongly positive skin tests (a hive more than 5 millimeters wide) had positive food challenges -- and of them, only half had reactions needing any treatment.
Of course it is not hysteria if you have an allergic child and you want to keep them away from peanut products. Doing anything else would be stupid, negligent and downright criminal. But, treating every child as if they were allergic is creating a lot of anxiety around food IMO. Also, it is a widely held belief that delaying the introduction of peanuts can prevent peanut allergy. But there is no evidence to back this up.
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Though severe peanut allergies are extremely uncommon, many parents want to know how to prevent them.
One widely held theory -- endorsed by the American Academy of Pediatrics -- is that allergy might be avoided if the mother stays away from peanuts and other likely food allergens during pregnancy and breastfeeding and that children shouldn't be given them until at least 2 years of age. But supporting research is absent.
The best study, published in The Journal of Allergy and Clinical Immunology in 1995, showed that a strict maternal diet coupled with delayed introduction of allergenic foods had no impact on long-term risk of ''food allergy, atopic dermatitis, allergic rhinitis, asthma, any atopic disease, lung function, food or aeroallergen sensitization, [or] serum IgE level."
Everybody is free to make up their own mind and decide to "err on the side of caution" if they so wish. I have decided to treat my child as if it were healthy in every way until proven otherwise.