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Allergic Rhinitis - Overview
SYMPTOMS & TREATMENTS
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What is allergic rhinitis?
Allergic rhinitis, often called allergies or hay fever, occurs when your immune system overreacts to particles in the air that you breathe—you are allergic to them. Your immune system attacks the particles in your body, causing symptoms such as sneezing and a runny nose. The particles are called allergens, which simply means they can cause an allergic reaction.
People with allergies usually have symptoms for many years. You may have symptoms often during the year, or just at certain times. You also may get other problems such as sinusitis and ear infections as a result of your allergies.
Over time, allergens may begin to affect you less, and your symptoms may not be as severe as they had been.
What are the symptoms of allergic rhinitis?
In most cases, when you have allergic rhinitis:
- You sneeze again and again, especially after you wake up in the morning.
- You have a runny nose and postnasal drip. The drainage from a runny nose caused by allergies is usually clear and thin. But it may become thicker and cloudy or yellowish if you get a nasal or sinus infection.
- Your eyes are watery and itchy.
- Your ears, nose, and throat are itchy.
Which allergens commonly cause allergic rhinitis?
You probably know that pollens from trees, grasses, and weeds cause allergic rhinitis. Many people have allergies to dust mites, animal dander, cockroaches, and mold as well. Things in the workplace, such as cereal grain, wood dust, chemicals, or lab animals, can also cause allergic rhinitis.
If you are allergic to pollens, you may have symptoms only at certain times of the year. If you are allergic to dust mites and indoor allergens, you may have symptoms all the time.
How is allergic rhinitis diagnosed?
To find out if you have allergies, your doctor will ask about your symptoms and examine you. Knowing what symptoms you have, when you get them, and what makes them worse or better can help your doctor know whether you have allergies or another problem.
If you have severe symptoms, you may need to have allergy tests to find out what you are allergic to.
- Your doctor may do a skin test. In this test your doctor puts a small amount of an allergen into your skin to see if it causes an allergic reaction.
- Your doctor may order lab tests. These tests can find substances in your blood or other fluids that may mean you have allergic rhinitis.
How is it treated?
There is no cure for allergic rhinitis. One of the best things you can do is to avoid the things that cause your allergies. You may need to clean your house often to get rid of dust, animal dander, or molds. Or you may need to stay indoors when pollen counts are high.
Unless you have another health problem, such as asthma, you may take over-the-counter medicines to treat your symptoms at home. If you do have another problem, talk to your doctor first. Others who also should talk to their doctor before starting self-treatment include older adults, children, and women who are pregnant or breast-feeding.
If your allergies bother you a lot and you cannot avoid the things you are allergic to, you and your doctor can decide if you should get allergy shots (immunotherapy) to help control your symptoms. For allergy shots to work, you need to know what you are allergic to.
Finding the treatment that works best for you may take a little time.
| By: | Healthwise Staff | Last Revised: August 4, 2010 |
| Medical Review: | E. Gregory Thompson, MD - Internal Medicine Harold S. Nelson, MD - Allergy and Immunology | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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