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Diseases & Conditions : Allergy and Asthma

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    • All About Allergy

      Detailed information on allergy, including symptoms, diagnosis, and treatment

    • All About Asthma

      Asthma is a chronic, inflammatory lung disease with recurrent breathing problems.

    • Allergen: Insect Stings

      Detailed information on allergic reactions to insect bites and stings

    • Allergens: Animals

      Household pets, like cats and dogs, are the most common sources of animal allergens.

    • Allergens: Chemical Sensitivity

      Detailed information on synthetic and natural substances that cause sensitivity to the skin

    • Allergens: Dust and Dust Mites

      Dust mites are microscopic organisms that can live and thrive throughout homes and businesses.

    • Allergens: Mold

      Mold spores or fragments may be inhaled through the nose and into the lungs, where they cause allergic reactions or asthma.

    • Allergens: Poison Ivy/Poison Oak/Poison Sumac

      Poison ivy, poison oak, and poison sumac are native American plants. These plants cause an allergic reaction in most people who are exposed to them.

    • Allergens: Pollen

      Pollen is the most common cause of seasonal allergic rhinitis, sometimes known as "hay fever."

    • Allergens: Triggers of Allergy Attacks

      Detailed information on allergy triggers and symptom control

    • Allergies and the Immune System

      Most allergic reactions are a result of an immune system that responds to a "false alarm."

    • Allergy and Asthma Statistics

      More than 22 million Americans have been diagnosed with asthma. Find out other facts and figures on this chronic disease.

    • Allergy Overview

      Allergies are problems of the immune system. Most allergic reactions happen when the immune system reacts to a “false alarm.” Normally, the human body defends itself against harmful things, such as viruses or bacteria. But sometimes the defenses violently attack mostly mild things, such as dust, mold, or pollen.

    • Asthma and Exercise

      Exercise-induced asthma is different from the typical asthma that is triggered by allergens and/or irritants.

    • Asthma and Pregnancy

      With proper asthma management and good prenatal care, most women with asthma can have healthy pregnancies.

    • Asthma Overview
    • Atopic Dermatitis

      Atopic dermatitis, also called eczema, is a chronic skin disorder. It commonly affects infants and may last until adulthood. It causes itchy, scaly patches on the skin.

    • Contact Dermatitis

      Contact dermatitis is a reaction that happens after your skin comes in contact with certain substances. Skin irritants cause most contact dermatitis reactions. Other cases are caused by allergens, which trigger an allergic response.

    • Diagnostic Tests for Allergies

      Detailed information on allergy testing, including blood testing (rast testing) and scratch testing

    • Diet for Lactose Intolerance

      Detailed information on lactose intolerance, including a list of foods that contain lactose

    • Egg Allergy Diet

      Detailed information on egg allergy, a type of food allergy, including egg-free recipes and egg substitutes

    • Food Allergy

      A food allergy is when your body has a bad immune reaction to a certain food. This is different than a food intolerance which does not affect the immune system. This is true even though some of the same signs may be present.

    • Glossary - Allergy and Asthma

      Online medical glossary of terms relating to allergy and asthma written for patients and consumers

    • Home Page - Allergy and Asthma

      Detailed information on allergy and asthma, including causes, symptoms, diagnosis, control, and treatment

    • IgG Deficiencies

      An IgG deficiency is a health problem in which your body doesn’t make enough Immunoglobulin G (IgG). People with IgG deficiency are more likely to get infections.

    • IgG Deficiencies

      An IgG deficiency is a health problem in which your body doesn’t make enough Immunoglobulin G (IgG). People with IgG deficiency are more likely to get infections.

    • IgG Deficiencies

      An IgG deficiency is a health problem in which your body doesn’t make enough Immunoglobulin G (IgG). People with IgG deficiency are more likely to get infections.

    • IgG Deficiencies

      An IgG deficiency is a health problem in which your body doesn’t make enough Immunoglobulin G (IgG). People with IgG deficiency are more likely to get infections.

    • IgG Deficiencies

      An IgG deficiency is a health problem in which your body doesn’t make enough Immunoglobulin G (IgG). People with IgG deficiency are more likely to get infections.

    • Latex Allergy

      Symptoms of latex allergy include watery or itchy eyes, wheezing, hives, flushing or a skin rash, itching, or swelling.

    • Lymphoma

      Lymphomas are cancers that affect the white blood cells and lymphatic system. This system includes hundreds of lymph nodes, which are found all over the body, and the lymphatic vessels that link the nodes.

    • Management of Asthma

      One part of asthma management is to identify and avoid the things that trigger your asthma. You also need to understand how to take your asthma medications.

    • Milk Allergy Diet

      Detailed information on milk allergy, a type of food allergy, including milk-free recipes and milk substitutes

    • Occupational Asthma

      Occupational asthma is often a reversible condition, which means the symptoms may disappear when the irritants that caused the asthma are avoided.

    • Online Resources - Allergy and Asthma

      List of online resources to find additional information on allergy and asthma

    • Peak Flow Meter

      A peak flow meter for asthma is like a thermometer for a fever—it helps you monitor what's going on inside your lungs by measuring airflow out of the lungs.

    • Peanut Allergy Diet

      Detailed information on peanut allergy, a type of food allergy, including potential sources of peanut protein and other sources of peanut and peanut products

    • Pemphigus Vulgaris

      Pemphigus is a rare group of autoimmune diseases. It causes blisters on the skin and mucous membranes throughout the body. It can affect the mouth, nose, throat, eyes, and genitals.

    • Pemphigus Vulgaris

      Pemphigus is a rare group of autoimmune diseases. It causes blisters on the skin and mucous membranes throughout the body. It can affect the mouth, nose, throat, eyes, and genitals.

    • Pemphigus Vulgaris

      Pemphigus is a rare group of autoimmune diseases. It causes blisters on the skin and mucous membranes throughout the body. It can affect the mouth, nose, throat, eyes, and genitals.

    • Pemphigus Vulgaris

      Pemphigus is a rare group of autoimmune diseases. It causes blisters on the skin and mucous membranes throughout the body. It can affect the mouth, nose, throat, eyes, and genitals.

    • Pemphigus Vulgaris

      Pemphigus is a rare group of autoimmune diseases. It causes blisters on the skin and mucous membranes throughout the body. It can affect the mouth, nose, throat, eyes, and genitals.

    • Rhinitis

      Rhinitis is a reaction that happens in the eyes, nose, and throat when allergens in the air trigger the release of histamine in the body. Histamine causes itching, swelling, and fluid to build up in the fragile linings of nasal passages, sinuses, and eyelids.

    • Shellfish Allergy Diet

      Detailed information on shellfish allergy, a type of food allergy, including how to read a label for an shellfish-free diet

    • Soy Allergy Diet

      Detailed information on soy allergy, a type of food allergy, including how to read a label for a soy-free diet and other potential sources of soy or soy product

    • Symptomatic Conditions of Allergy

      Detailed information on symptomatic conditions of allergy, including asthma, atopic dermatitis, contact dermatitis, rhinitis, and urticaria

    • Topic Index - Allergy and Asthma

      Detailed information on allergy and asthma, including causes, symptoms, diagnosis, control, and treatment

    • Treatment for Allergy

      The most effective ways to treat allergies are avoidance, allergy immunotherapy, and medicine.

    • Treatment for Asthma

      Two types of medication are used to treat asthma: long-term control medication and short-term, quick-relief medication.

    • Tree Nut Allergy Diet

      Detailed information on tree nut allergy, a type of food allergy, including how to read a label for a tree nut-free diet

    • Triggers for Asthma Attacks

      Asthma triggers include pollen, mold, animal dander, and air pollutants such as tobacco smoke.

    • Urticaria/Hives

      Detailed information on urticaria, also called hives, including what food and medicines commonly cause hives

    • Wheat Allergy Diet

      Detailed information on wheat allergy, a type of food allergy, including how to read a label for a wheat-free diet

    • Your Child's Asthma

      How asthma will affect a child throughout his/her lifetime varies, depending on the child.