If you have allergies, you have lots of company. As many as 30% of U.S. adults and 40% of children are in the same boat as you.
While your problem may seem to start in the nose or the eyes, allergies actually come from an immune system running wild.
Learning why these reactions happen can help you keep things under control and feel better.
But when it makes war on substances it shouldn’t, that’s an allergy.
Peanuts, eggs, or pollen, for example, can trigger reactions. They are called allergens.
During a reaction, your immune system releases antibodies. These are proteins that deliver a message to cells: Stop that substance! The cells then send out histamine, which causes blood vessels to expand, and other chemicals, and these trigger the allergy symptoms.
You can come into contact with allergens in many ways: through the skin, eyes, nose, mouth, or stomach. This can cause your sinuses to clog up, inflame your skin, make it harder to breathe, or cause stomach problems.
Some common allergens include:
- Animal dander
- Bee stings
- Certain medications such as penicillin
- Dust mites
- Foods — particularly peanuts, tree nuts, fish, shellfish, eggs, milk, wheat, and soy
- Insect bites
- Latex or other materials you touch
- Mold
- Plants and pollens
Here are some common types of allergies:
Hay fever: Also known as allergic rhinitis, it can cause:
- Sneezing
- Runny or stuffy nose
- Itchy eyes, nose or roof of mouth
- Red, swollen, watery eyes — a condition known as allergic conjunctivitis
Food allergies: You may feel tingling in your mouth. Your tongue, lips, throat, or face might swell up. Or you could get hives. In the worst cases, you might have anaphylaxis and will need medical help right away.
Eczema: Also known as atopic dermatitis, it is a skin condition. Most types of eczema are not allergies. But the disease can flare up when you’re around things that cause an allergic reaction. Your body’s immune system overreacts to substances, called allergens, that are usually not harmful. You might get hives, itching, swelling, sneezing, and a runny nose. You might have it if you have itching, redness, and peeling or flaking.
Stings: If you’re allergic to bees or other insects you may get:
- A large area of swelling, known as edema, at the site of the sting
- Itching or hives all over your body
- Shortness of breath, wheezing, chest tightness, or a cough
As with some other allergies, such as food and medication, a severe reaction to a sting can lead to anaphylaxis.
It’s a serious situation and can put your body into shock. Food, medications, insect bites, or latex are the most likely causes.
A second anaphylactic episode can happen up to 12 hours after the first one.
The symptoms of anaphylaxis can come on suddenly.
They can quickly go from a mild rash or runny nose to serious problems such as a hard time breathing, tightness in the throat, hives or swelling, nausea or vomiting, and fainting or dizziness. Some people can get a rapid pulse or their heart will stop beating.
Carry this with you always and be aware of your allergy triggers.
Call 911 and go straight to an emergency room at the first sign of trouble, even if you have used the injection device. Go even if you are starting to feel better, in case you have a delayed reaction.
If you have an allergic-type asthma, your doctor might also prescribe an inhaler to ease attacks. Or they may inject a special antibody to manage symptoms.
If you don’t get enough relief by avoiding your allergens and using medications, your doctor may want to give you allergy shots. This type of treatment is called immunotherapy, and it can be effective for hay fever and allergic asthma.
Another type of immunotherapy involves tablets that dissolve under your tongue.
For your sinuses, an over-the-counter medication might ease your symptoms.
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