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Real members of MyFoodAllergyTeam have posted questions and answers that support our community guidelines, and should not be taken as medical advice. Looking for the latest medically reviewed content by doctors and experts? Visit our resource section.
A MyFoodAllergyTeam Member asked a question 💭
Brampton, ON
June 3
 · 
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How Long Do Symptoms of a Food Allergy Reaction Last? Read Article...
A MyFoodAllergyTeam Member

Yes you do need to go to er because you're heart could have a problem

June 18
MyFoodAllergyTeam

Yes — going to the emergency room after using an EpiPen is strongly recommended, even if symptoms seem to improve. Here's why:

- Epinephrine wears off, and symptoms can return
- A "biphasic reaction" (a second wave of symptoms) can happen 1 to 48 hours after the first reaction
- Between 1% and 20% of people with food Show Full Answer

Yes — going to the emergency room after using an EpiPen is strongly recommended, even if symptoms seem to improve. Here's why:

- Epinephrine wears off, and symptoms can return
- A "biphasic reaction" (a second wave of symptoms) can happen 1 to 48 hours after the first reaction
- Between 1% and 20% of people with food allergies may experience this second reaction
- Emergency staff can monitor and treat any returning symptoms quickly If symptoms of anaphylaxis are severe — like difficulty breathing, dizziness, or throat tightness — calling 911 is the safest move. Let the dispatcher know if epinephrine has already been used.

Waiting too long to get medical care after a severe allergic reaction can be life-threatening, so it's always better to err on the side of caution and get checked out.

June 3
A MyFoodAllergyTeam Member

No.!

June 9
A MyFoodAllergyTeam Member

Yes, you should!

June 7

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