8 doctors weighed in:

I get severe headache when I smell red onions. Is this an allergic reaction?

8 doctors weighed in
Dr. Douglas Tzanetos
Internal Medicine - Allergy & Immunology
5 doctors agree

In brief: No

This is an irritant reaction but does not represent an actual food allergy.
Food allergy reactions are more likely to present with a combination of the following: rash or hives (the most common symptoms), swelling of lips, tongue, or throat, respiratory symptoms, vomiting, or diarrhea.

In brief: No

This is an irritant reaction but does not represent an actual food allergy.
Food allergy reactions are more likely to present with a combination of the following: rash or hives (the most common symptoms), swelling of lips, tongue, or throat, respiratory symptoms, vomiting, or diarrhea.
Dr. Douglas Tzanetos
Dr. Douglas Tzanetos
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Dr. Brian Novick
Internal Medicine - Allergy & Immunology
1 doctor agrees

In brief: Maybe but

It may also be an intolerance.
Either way the only treatment is avoidance. Sometimes cooking a food lessens such a reaction.

In brief: Maybe but

It may also be an intolerance.
Either way the only treatment is avoidance. Sometimes cooking a food lessens such a reaction.
Dr. Brian Novick
Dr. Brian Novick
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