Almost anything can trigger an allergic reaction in sensitive people. Exposure to allergens can occur through the air, by touch, or by ingestion. Common allergens include a wide range of indoor and outdoor airborne particles, foods, drugs, animal venom, and other chemicals, including:
- tree and plant pollen
- animal dander
- dust mites
- mold spores
- bee venom
- latex
- foods, such as peanuts, milk, eggs, tree nuts, fish, shellfish, soy, wheat
- medicines, such as penicillin, sulfa drugs, local anesthetics
