Ask the allergist series – September 2023

September 1, 2023

In our Ask the allergist series, Canadian allergists answer your questions on many food allergy-related topics. Please note: The allergists featured in this series answer questions on general topics, please talk to your doctor if you have questions about your own health or the health of your child.

As you prepare for the back-to-school and fall season, we compiled past questions answered by Dr. Julia Upton about asthma, food allergy, anaphylaxis, and oral allergy syndrome (OAS)/pollen food allergy syndrome (PFAS). Click on the boxes to learn more!

asthmatic woman using inhaler with spacer in bedroomHow can you tell the difference between anaphylaxis and an asthma attack, also called an asthma exacerbation?

Learn more about asthma and food allergy on our site and about asthma in general from asthma.ca. Find out more about OAS/PFAS on our site and download our pollen allergy & foods chart.


Dr. Julia Upton
Dr. Julia Upton


Dr. Julia Upton is on staff at the Hospital for Sick Children in the Immunology and Allergy Department; and an Associate Professor in the Department of Paediatrics at the University of Toronto. She is the past Section Chair of the Anaphylaxis and Food Allergy Section of the Canadian Society of Allergy and Clinical Immunology. Dr. Upton is also a member of our Healthcare Advisory Board.

Please note: Dr. Upton is answering as an individual allergist and her answers do not constitute an official position of her affiliated organizations. Her responses are for informational purposes only and do not constitute specific medical advice, recommendations, diagnosis, or treatment. Please talk to your doctor about any concerns or questions you may have regarding your own health or the health of your child.

Do you have a food allergy-related question you’d like to ask an allergist in the months to come? If so, send it along to us at info@foodallergycanada.ca.

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