Ask the allergist is an everyday function in our newsletters the place Canadian allergists reply your questions! Please word, the allergists featured on this collection reply questions on basic matters, please discuss to your physician if in case you have questions on your personal well being or the well being of your little one.
This month we’re resharing a previous Ask the allergist the place Dr. Julia Upton solutions questions on oral allergy syndrome (OAS) and pollen meals allergy syndrome (PFAS).
Do OAS/PFAS signs occur all 12 months lengthy or solely throughout pollen season?
The signs of OAS/PFAS can occur all 12 months lengthy.

Can OAS/PFAS have an effect on each children and adults?
Sure, though it’s unusual in very younger youngsters. Normally, OAS/PFAS develops later in childhood and through adolescence.
Can OAS/PFAS be prevented?
OAS/PFAS is expounded to pollen allergy, particularly birch tree, grass and ragweed.
Stopping pollen allergy can be anticipated to forestall OAS/PFAS; prevention of pollen allergy is an ongoing area of examine.
How is OAS/PFAS handled?
Some meals, comparable to fruit and veggies, may cause signs when they’re uncooked. Nevertheless, the protein adjustments when they’re cooked; the cooked meals is now not as much like pollen and causes no signs when eaten. Subsequently, the administration is to eat them within the cooked type and keep away from them in uncooked kinds.
Different meals, comparable to melons, are uncommon to eat within the cooked type and are normally prevented if these meals give signs.

If an individual has signs to some meals which aren’t considerably modified by cooking, comparable to peanuts and tree nuts, or has signs to cooked fruit and veggies, avoidance of the meals and carrying an epinephrine auto-injector could also be suggested.
There could also be a job for treating pollen allergy with immunotherapy (allergy photographs) to attempt to scale back the signs of OAS/PFAS.
Many meals may cause OAS/PFAS. There are lists, like this one, linking completely different pollens to sure meals which may also help to establish meals identified to trigger signs. These lists present examples of varied fruits, greens, legumes, and nuts. It’s not seemingly for somebody to react to each meals on such lists and due to this fact avoiding all of the meals famous just isn’t wanted.
Be taught extra


Dr. Julia Upton is on employees on the Hospital for Sick Youngsters within the Immunology and Allergy Division; and an Affiliate Professor within the Division of Paediatrics on the College of Toronto. She is on the Board of Administrators of the Canadian Society of Allergy and Scientific Immunology, and is a member of our Healthcare Advisory Board.
Please word: Dr. Upton is answering as a person allergist and her solutions don’t represent an official place of her affiliated organizations. Her responses are for informational functions solely and don’t represent particular medical recommendation, suggestions, prognosis, or remedy. Please discuss to your physician about any considerations or questions you might have relating to your personal well being or the well being of your little one.
Do you have got a meals allergy-related query you’d prefer to ask an allergist? If that’s the case, ship it alongside to us at [email protected].
Tags: ask the allergist, Oral Allergy Syndrome, pollen meals allergy syndrome
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