Allergies & the Immune System

Learn all about allergic reactions and other problems of the immune system.

• 5 Ways to Prepare for an Allergy Emergency
• Air Pollution and Asthma
• Allergies (Topic Center)
• Allergy Shots
• Alopecia Areata (Hair Loss)
• COVID-19 and Multisystem Inflammatory Syndrome in Children (MIS-C)
• Celiac Disease
• Dealing With Triggers: Cockroaches
• Dealing With Triggers: Dust Mites
• Dealing With Triggers: Irritants
• Dealing With Triggers: Mold
• Dealing With Triggers: Pets
• Dealing With Triggers: Pollen
• Do Allergies Cause Asthma?
• Eczema (Atopic Dermatitis)
• Egg Allergy
• First Aid: Allergic Reactions
• Fish Allergy
• Food Allergies
• Food Allergies (Topic Center)
• Food Protein Induced Enterocolitis Syndrome (FPIES)
• Going to School With Food Allergies
• Henoch-Schönlein Purpura (HSP)
• Hives (Urticaria)
• Immune Thrombocytopenia
• Inflammation
• Insect Sting Allergy
• Kids and Allergies
• Milk Allergy
• Milk Allergy in Infants
• Peanut Allergy
• Poison Ivy
• Pollen-Food Allergy Syndrome
• Psoriasis
• Seasonal Allergies (Hay Fever)
• Serious Allergic Reactions (Anaphylaxis)
• Sesame Allergy
• Severe Combined Immunodeficiency (SCID)
• Shellfish Allergy
• Soy Allergy
• Stem Cell Transplants
• Tests for Food Allergies
• Thrombocytopenia
• Tree Nut Allergy
• What Is Skin Testing for Allergies?
• What Should I Look for on Food Labels if My Child Has Food Allergies?
• What's the Difference Between a Food Allergy and a Food Intolerance?
• Wheat Allergy