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Allergies : Basic Info You Need to Know What Is an Allergy? Allergic Reactions Allergy Symptoms Is It Anaphylaxis? What Is an Allergy? Airborne allergens, such as pollen, can be a major trigger for allergies. You get allergies when your immune system responds to substances such as pollen, pet dander, or certain foods. Your antibodies identify these allergens as bad for you, even though they’re not. How common are they? About 18 million grown-ups in the U.S. suffer from hay fever, or allergic rhinitis. At least one out of every three American adults and one out of every four kids have allergies. Doctors aren’t exactly sure how many grown-ups get diagnosed with allergies for the first time. But every year, more and more Americans deal with nasal allergies, according to the American College of Allergy, Asthma, and Immunology. No matter what, allergies are widespread, and they’re a big deal. They’re the sixth most common cause of long-lasting sickness in the U.S., as per the CDC. And they cost Americans over $18 billion annually. Allergic Reactions When you encounter something you’re allergic to, your body reacts by releasing substances like histamines into your bloodstream. This reaction triggers symptoms that can affect your skin, sinuses, or stomach. Some usual things that cause allergies are: Airborne stuff: Pollen, pet fur, dust mites, mold Certain foods: Like peanuts, tree nuts, shellfish, eggs, and dairy Insect bites: From bees and wasps Medicines Latex Allergies – Symptoms Your allergy symptoms will vary, depending on what you’re allergic to and how you’re exposed. Allergens can enter your body in several ways: Through your nasal passages and into your lungs Through your mouth Through your skin Through absorption from an insect sting If you have a mild allergic reaction, common symptoms might be: Itchy, watery eyes Sneezing Itchy, runny nose Feeling tired or ill Rashes and hives Symptoms of a food allergy could include: Tingling in your mouth Swelling of your lips, tongue, face, or throat Hives Stomach cramps, vomiting, or diarrhea Anaphylaxis An allergic reaction to an insect sting might cause any of these: Swelling, redness, and pain at the site of the sting Itching or hives Chest discomfort or tightness Coughing Anaphylaxis A severe allergic reaction could produce problems such as: Belly pain Anxiety Chest tightness Coughing Diarrhea A hard time breathing or swallowing Dizziness Swelling of the face, eyes, or tongue Anaphylaxis If you have any of these severe symptoms, call your doctor or seek medical help right away. Some allergic reactions can be mild, while others can be very serious and even life-threatening, causing a condition called anaphylaxis. Anaphylaxis is when your whole body reacts severely to an allergen. It’s important to treat anaphylaxis quickly with a shot of epinephrine (also known as adrenaline), usually using an auto-injector.If you have an epinephrine auto-injector, use it right away and repeat the dose if your symptoms don’t improve after 5 to 15 minutes. Even if you start feeling better after using the injector, it’s crucial to seek medical help. Signs of anaphylaxis include: – Hives and itching all over your body – Trouble breathing, like wheezing or feeling short of breath – A tight or hoarse throat – Swelling of your face, lips, tongue, or throat – Tingling sensations in your hands, feet, lips, or scalp If you experience any signs of anaphylaxis, call 911 immediately. Testing for Allergies An allergy test checks how your body reacts to certain things that might trigger allergies. If your immune system reacts strongly, it means you have an allergy. Your body makes special antibodies called immunoglobulin E (IgE) when it’s allergic to something. There are various types of allergy tests. The one your doctor chooses depends on what symptoms you have and what they suspect might be causing your allergies. Skin-prick or scratch test for allergies During a skin allergy test, your healthcare provider will use a small needle to prick your skin with allergens or place droplets of allergens on your skin and then gently scratch the surface. This is typically done on your forearm or back. If you’re allergic to any of the substances, you’ll likely develop a rash or raised spots called wheals within about 15 minutes. Sometimes, you might be tested for multiple allergies at once. Intradermal skin test If the skin-prick test doesn’t give enough information, your doctor might suggest another test. In this one, they inject a tiny amount of allergen into the outer layer of your skin. Then they’ll watch for any rash or reaction to see if you’re allergic to that substance. Patch test This test is for contact dermatitis, which occurs when your skin touches something you’re allergic to. Your healthcare provider will place drops of an allergen on your skin and cover it with a bandage, sometimes with the allergen on the bandage itself. You keep the bandage on for at least 2 days. When you return to the doctor, they’ll remove the bandage and look for any reaction on your skin. Blood test Your healthcare provider will take a blood sample from you and send it to a lab. In the lab, they’ll mix allergens with your blood and test it for levels of IgE antibodies. This test is called a blood allergy test. However, it’s important to note that this test can sometimes show false positives, meaning it might suggest you have an allergy when you actually don’t. Another type of test is called a challenge test. Usually, an allergist, who is a specialist in allergies, conducts this test. You’ll swallow a tiny bit of something you might be allergic to, like a food or medication, while a healthcare provider keeps a close eye on you in case you have a severe reaction like anaphylaxis. If that happens, you’ll receive a shot of epinephrine immediately to stop the reaction. Before the allergy test, you’ll need to stop taking your allergy medications for 3 to 7 days. These medications can affect the results of the test. Allergies and Your