22q11.2 deletion syndrome is a genetic disorder marked by hypoparathyroidism, certain heart defects, and a cleft lip or palate.

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

What causes asthma? It may be partially inherited, but many other environmental, infectious, and chemical factors are involved.

Detailed information on the immune system, including a full-color, labeled illustration of the immune system

Pollen, dust mites, mold, and animal dander are the most common causes of allergic rhinitis.

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

Detailed information on anaphylaxis, including causes, symptoms, and treatment

Detailed information on animals as allergens

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

Your child's asthma may be triggered by a number of things: pollen, molds, certain foods, strong odors, or even exercise.

Detailed information on asthma, including triggers of an asthma attack, symptoms, diagnosis, management, and treatment

Your child's health care provider will prescribe asthma medications based on your child's age, severity of symptoms, and his or her ability to take inhaled medications.

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

From bed coverings to air purifiers, from pets to secondhand smoke, here are ideas to keep your child's asthma triggers under control.

Detailed information on the differences between the common cold symptoms and symptoms of allergies

Detailed information on common variable immunodeficiency, including symptoms, diagnosis, and treatment

You had conjunctivitis as a child, now your baby has symptoms of it. Your first step should be a call to your doctor, who will make a diagnosis and prescribe the appropriate treatment.

Detailed information on contact dermatitis, including symptoms, diagnosis, and treatment

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

Your child's breathing will become harder and may hurt. You may hear a wheezing or whistling sound, which is typical of asthma.

Detailed information on dust mite allergens

Parents of children with egg sensitivity may not be aware of the variety of food products that contain eggs. That's why it's important to carefully read food labels.

Detailed information on food allergy, including cause, symptoms, and treatment

Glossary of terms relating to asthma and allergy

Breathing the medication straight into the lungs works better and faster than taking the medication by mouth. Nebulizer treatments take about 15 to 20 minutes.

Detailed information on allergy, asthma, and immunology

Detailed information on immune deficiency disorders in children, including Severe Combined Immunodeficiency, Common Variable Immunodeficiency, DiGeorge Syndrome, and X-linked Agammaglobulinemia

Detailed information on the immune system and immune disorders

For most children, the reaction to a sting is short-lived, with redness and swelling followed by pain and itching. For others, however, the allergic reaction to an insect sting can be life threatening.

Detailed information on lactose intolerance, including causes, symptoms, diagnosis, and treatment

Langerhans cell histiocytosis most often strikes young children and causes damage to tissues throughout the body.

Some children develop an allergy to latex. Symptoms include watery or itchy eyes, wheezing, skin rash, and itching of the skin.

Asthma levels are classified in "steps," because each child may step up or step down to different levels at any time.

Your child's asthma can be controlled with prescription medications that may help to prevent or relieve symptoms.

The words "non-dairy" on a product label mean that it does not contain butter, cream, or milk—but it could still contain other types of milk products.

Detailed information on mold allergy, including potential sources of mold inside and outside the home

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

These three types of tools are used to measure how well your child's asthma is under control.

Ethnic foods, commercially prepared baked goods, and candy can be cross-contaminated with peanuts, because peanuts are frequently used in these types of foods.

Detailed information on poison ivy/poison oak, including symptoms, diagnosis, treatment, and prevention

Detailed information on pollen allergy, also called hay fever, including information on which plants produce the most pollen and allergic rhinitis prevention during pollen season

Detailed information on severe combined immunodeficiency, including causes, symptoms, diagnosis, and treatment

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

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

Detailed information on allergy, asthma, and immunology

Detailed information on avoidance of allergens and treatment for allergy, including immunotherapy (allergy shots) and medication

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

Detailed information on allergy triggers and symptom control

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

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

Detailed information on X-linked agammaglobulinemia, including causes, symptoms, diagnosis, and treatment