Aug 30, 2024 · Food allergy is an immune system reaction that happens soon after eating a certain food. Even a tiny amount of the allergy-causing food can trigger symptoms such as hives, swollen airways and digestive problems. In some people, a food allergy can cause severe symptoms or even a life-threatening reaction known as anaphylaxis.

Aug 24, 2024 · A food allergy can cause: Tingling in the mouth. Swelling of the lips, tongue, face or throat. Itchy welts called hives. Stuffy nose, sneezing or teary eyes that itch. Stomach cramps, vomiting or diarrhea. Anaphylaxis. An insect sting allergy can cause: Pain and a large area of swelling called edema at the sting site. Itching or hives all over ...

Aug 30, 2024 · If you suspect you have a food allergy, avoid exposure to the food altogether until your appointment. If you do eat the food and have a mild reaction, nonprescription antihistamines may help relieve symptoms.

Jun 4, 2020 · Food allergy is becoming increasingly common. Having an allergic reaction can be alarming, especially when you are not sure of the cause. The Division of Allergic Diseases diagnoses and treats food allergies.

Feb 28, 2024 · A true food allergy affects the immune system. Even small amounts of the offending food can trigger a range of symptoms, which can be severe or life-threatening. In contrast, a food intolerance often affects only the digestive …

Oct 31, 2022 · If you have a food allergy, your body overreacts to a specific food as if it were a threat. This can occur when you ingest even the smallest amount of the food. For some people, the allergy may be triggered by smelling or coming into contact with the food.

Apr 13, 2022 · A food allergy is the body's immune response where an immunoglobulin E antibody, also known as an allergy antibody, binds to an allergy cell. The allergy cell releases chemicals, namely histamine, that causes a reaction — typically within a few minutes.

Jun 11, 2022 · Egg allergy symptoms usually occur a few minutes to a few hours after eating eggs or foods containing eggs. Signs and symptoms range from mild to severe and can include skin rashes, hives, nasal congestion, and vomiting or other digestive problems. Rarely, egg allergy can cause anaphylaxis — a life-threatening reaction.

Jun 16, 2022 · Signs and symptoms of milk allergy range from mild to severe and can include wheezing, vomiting, hives and digestive problems. Milk allergy can also cause anaphylaxis — a severe, life-threatening reaction.

Mar 5, 2022 · A child or adult with wheat allergy is likely to develop signs and symptoms within minutes to hours after eating something containing wheat. Wheat allergy signs and symptoms include: Swelling, itching or irritation of the mouth or throat; Hives, itchy rash or swelling of the skin; Nasal congestion; Headache; Difficulty breathing; Cramps, nausea ...