Food Allergy - What You Need To Know



4 Signs You Have A Food Allergy Other Than Breaking Out In Hives

GI issues
GI issues
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After you're exposed to a food protein that your immune system mistakenly thinks is harmful, it releases antibodies and other chemicals called histamines to help expel the "invader" from your body. The symptoms you develop depend on where in the body the histamine is released. If it's released in the skin, for example, you may develop hives, flushing, swelling, or a rash. If it's released in the gastrointestinal tract, it can cause symptoms like nausea, diarrhea, abdominal pain, and vomiting. (If you feel bloated, here are 7 ways GI docs beat their own bloat.)

When GI symptoms occur, it can be easy to mistake them for the flu or food poisoning, says Patel. One tip off it's a food allergy: The vomiting or cramps is often also accompanied by non-GI-related symptoms, like a scratchy throat or swelling of the lips. If you suspect you might be experiencing symptoms of a food allergy, it's important to seek medical care. Even if your symptoms are relatively mild, you can't predict whether they'll become more severe or potentially life-threatening during a subsequent episode. Plus, there's some evidence that reactions in adults tend to be more severe.

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Sneezing and congestion
sneezing and congestion
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It might seem like you're coming down with a cold, but sneezing, a runny nose, and nasal congestion that seems to come on after eating a certain food could signal a food allergy. The reason is simple: Histamine is being released in your respiratory tract. Your tongue might also swell, or you might notice a metallic taste in your mouth.

Prevention Premium: What Nurses Know That Can Save Your Life

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Tingly, itchy mouth and throat
tingly throat
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So-called "oral allergy symptom" happens when someone who's allergic to pollen eats a fruit or vegetable that contains similar proteins. This is the most common type of adult food allergy, and the symptoms tend to be confined to the mouth and throat, says Wayne G. Shreffler, MD, PhD, director of the food allergy center at Massachusetts General Hospital. For example, people allergic to birch pollen may develop reactions to a related group of nuts and fruits like almonds, hazelnuts, apples, and pitted fruits. Those who are allergic to ragweed often have trouble eating melons and bananas.

Symptoms of OAS, which are generally mild form, usually appear immediately after eating the raw fruit or vegetable. The good news is that the same food is usually fine to eat when it's cooked because heat breaks down the problematic proteins. 

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Anaphylactic shock
anaphylactic shock
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The most severe manifestation of a food allergy, anaphylactic shock is a life-threatening reaction that requires emergency treatment. "Anaphylaxis is a combination of symptoms that involves different body systems, including the respiratory and gastrointestinal tracts, skin, and cardiovascular system," explains Patel. Symptoms includes difficulty breathing, swelling of the upper throat and/or tongue, a very rapid or irregular heartbeat, low blood pressure, or cardiac arrest (when the heart stops beating). If you have any of these, get help right away; you'll likely need an injection of epinephrine (adrenaline).






Video: Food allergy - Symptoms

4 Signs You Have A Food Allergy Other Than Breaking Out In Hives
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Date: 09.12.2018, 03:35 / Views: 95365