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How long does an average allergic reaction last for?

1 doctor weighed in
Dr. David Rosenthal
Internal Medicine - Allergy & Immunology

In brief: No average allergy

Everyone's allergic reaction varies.
There can be mild symptoms or severe symptoms. You can have continual exposure to the allergen (pollen for example) or acute exposure (like eating shellfish). The cause of the allergy, the severity of symptoms, and other factors all play into how long an allergic reaction occurs.

In brief: No average allergy

Everyone's allergic reaction varies.
There can be mild symptoms or severe symptoms. You can have continual exposure to the allergen (pollen for example) or acute exposure (like eating shellfish). The cause of the allergy, the severity of symptoms, and other factors all play into how long an allergic reaction occurs.
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