Allergies

Food, animal dander and the environment are all reasons that some people experience allergic reactions. Learn about the types of allergies and treatment options.

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Hay fever, or allergic rhinitis, is an allergy to environmental triggers. Learn what hay fever is in this article.

By HowStuffWorks.com Contributors

Your son is allergic to your pet dog and you want to know how to prevent the allergic reactions. This article will tell you how to help prevent allergies to dogs.

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Cat allergy symptoms can sometimes look a lot like other allergies, or even a cold or flu. So how do you know if your feline friend is causing the problem, and more importantly, what can you do to make it better?

By Jessika Toothman

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Dust mites are eight-legged creatures that don't bite or cause illness. But because they're so tiny and live in dust particles, they can be tricky to avoid no matter how often you clean your home.

By Maria Trimarchi

When you're suffering from allergies, there's nothing you want to do more than hide under your covers. Too bad that's the wrong move -- there are a host of allergens breeding and growing in your home.

By Marie Willsey

Also known as hay fever or simply allergies, ragweed can bring some sufferers to their knees. How can you combat this pesky problem?

By Emilie Sennebogen

If you're one of the many sufferers of any eye allergy, you know how uncomfortable they can be. What don't you know about eye allergies that just may help?

By Emilie Sennebogen

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There are some treatments available for those with penicillin allergies. Find out more about treatment for penicillin allergies from this article.

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Nasal steroids are generally safe and do not trigger allergic reactions. Find out more about nasal steroids from this article.

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Hay fever is a type of allergic reaction. Learn whether there is a procedure that can cure hay fever in this article.

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House dust is the most common cause of asthma and other allergic reactions. Learn more about why house dust is bad for allergies from this article.

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Soy allergies severely limit the foods you can eat. Learn what types of food you should avoid if you have a soy allergy in this article.

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Tree allergies are sensitivity to the pollen trees release in order to reproduce. Learn when tree allergy season is in this article.

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Pollen allergies are also referred to as hay fever or allergic rhinitis. Learn about pollen allergy symptoms in this article.

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Red food coloring can be from an artificial source or a natural source. Learn about red dye allergy symptoms in this article.

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Alternaria is a type of mold that commonly causes allergic reactions. Learn about signs of alternaria mold allergies in this article.

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People can be allergic to pollen, mold or other substances. Learn which house plants can cause allergies in this article.

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While it's not very common, allergies to chicken do exist. Learn about chicken allergy symptoms in this article.

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Rarely, people are allergic to tobacco plants. Learn about cigarette allergy symptoms in this article.

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Coconut oil allergies aren't necessarily related to tree nut allergies. Learn about coconut oil allergy symptoms in this article.

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Codeine is a pain medication with a variety of side effects. Learn about codeine allergy symptoms in this article.

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Kids suffer from food allergies more than adults do. Learn about common food allergies in children in this article.

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Corn allergies are rare, but they can be serious. Learn about corn allergy symptoms in this article.

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Dust allergies can be caused by dust mites, animal dander or fungus. Learn about dust allergy symptoms in this article.

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MSG is an artificial flavor enhancer found in many foods. Learn about MSG allergy symptoms in this article.

By HowStuffWorks.com Contributors