With allergic reactions, seconds matter. It is important to be able to quickly recognize and treat an allergic reaction. Work with your allergist to know what to look for and how to respond. Have them fill out a
Food Allergy and Anaphylaxis Emergency Care Plan for you.
Food allergy reactions are hard to predict. The last reaction a person had could look nothing like the next one.
The first symptoms usually appear between a few minutes and two hours after exposure to a food allergen, but they can also begin later.
Symptoms can affect many different parts of the body. The symptoms can be mild (itchy nose or a few hives), but they can also be severe (trouble breathing, repetitive vomiting, weak pulse etc.).
In some food allergy reactions, after the first symptoms go away, a second wave of symptoms can start one to four hours later. This is called a biphasic reaction.
