| 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: Food Detailed information on food allergy, including food intolerance and food allergy symptoms, diagnosis, and treatment |
| Allergen: Insect Stings Detailed information on allergic reactions to insect bites and stings |
| 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 can all cause bumps and blisters that itch. Teach your children what these plants look like and how to avoid them. |
| Allergens: Pollen Pollen is the most common cause of seasonal allergic rhinitis, sometimes known as "hay fever." |
| Asthma and Pregnancy With proper asthma management and good prenatal care, most women with asthma can have healthy pregnancies. |
| About Arthritis and Other Rheumatic Diseases Arthritis, itself a group of more than 100 different diseases, is one category of rheumatic diseases. |