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.

Learn More / Page 2

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

By HowStuffWorks.com Contributors

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

By HowStuffWorks.com Contributors

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

By HowStuffWorks.com Contributors

Advertisement

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

By HowStuffWorks.com Contributors

Nasal congestion is one symptom caused by an allergy. Find out how allergies cause nasal congestion from this article.

By HowStuffWorks.com Contributors

Skin allergy breakouts can be caused by foods, drugs or things you've touched. Learn how long skin allergy breakouts last in this article.

By HowStuffWorks.com Contributors

An avocado allergy is much like any other food allergy. Learn about avocado allergy symptoms in this article.

By HowStuffWorks.com Contributors

Advertisement

Food allergies can affect your behavior, causing hyperactivity, depression, anxiety and more. Learn whether food allergies can affect your behavior in this article.

By HowStuffWorks.com Contributors

A gluten allergy can have an early onset in childhood or a late onset in adulthood. Find out more about developing gluten allergies later in life from this article.

By HowStuffWorks.com Contributors

Allergies can cause a wide range of symptoms. Learn whether allergies can cause post-nasal drip in this article.

By HowStuffWorks.com Contributors

Fish allergies are a reaction to the proteins found in certain fish. Learn whether you can take fish oil supplements if you have a fish allergy in this article.

Advertisement

Allergies are the body's overreaction to certain substances. Learn whether lavender plants can cause allergies in this article.

By HowStuffWorks.com Contributors

Mold allergies can result in hair loss. Find out how exposure to mold can lead to hair loss from this article.

By HowStuffWorks.com Contributors

Pollen allergies are typically characterized by cold-like symptoms. Learn whether pollen allergies can make you nauseous in this article.

By HowStuffWorks.com Contributors

Red wine contains potentially bothersome elements like tannins, histamines and sulfites. Learn whether red wine can cause skin rashes in this article.

By HowStuffWorks.com Contributors

Advertisement

Allergic contact dermatitis is an itchy rash you can get from touching something you're allergic to. Learn whether you can have a skin allergy to tomato plants in this article.

By HowStuffWorks.com Contributors

Anaphylaxis is a life-threatening allergic response. Learn whether anaphylaxis can cause inflammation in your joints in this article.

By HowStuffWorks.com Contributors

Some alcohol allergy symptoms include stomach cramps, difficulty breathing and skin rashes. Learn what some alcohol allergy symptoms are in this article.

By HowStuffWorks.com Contributors

Some blueberry allergy symptoms are reactions of the skin, and respiratory or gastrointestinal systems. Learn about blueberry allergy symptoms in this article.

By HowStuffWorks.com Contributors

Advertisement

Some symptoms of a gluten allergy include gastrointestinal, neurological and behavioral symptoms. Learn about symptoms of a gluten allergy in this article.

By HowStuffWorks.com Contributors

Sometimes, people mistake lactose intolerance for a cheese allergy. Learn about cheese allergy symptoms in this article.

By HowStuffWorks.com Contributors

Some chocolate allergy symptoms are headaches, skin reactions and gastrointestinal symptoms. Learn about chocolate allergy symptoms in this article.

By HowStuffWorks.com Contributors

Some citrus allergy symptoms are skin reactions, gastrointestinal reactions and breathing problems. Learn about citrus allergy symptoms in this article.

By HowStuffWorks.com Contributors

Advertisement

Skin allergies result when you come in contact with something your immune system thinks is harmful. Learn about some different types of skin allergies in this article.

By HowStuffWorks.com Contributors

Some feather allergy symptoms are itchy, watery eyes, runny nose, sneezing and cough. Learn about feather allergy symptoms in this article.

By HowStuffWorks.com Contributors