Allergies occur when your immune system overreacts to a foreign substance, known as an allergen. This can be caused by various factors, including:
- Airborne allergens: These include pollen, animal dander, dust mites, and mold.
- Foods: Common food allergens include peanuts, tree nuts, wheat, soy, fish, shellfish, eggs, and milk.
- Insect stings: Stings from bees or wasps can also cause allergic reactions.
- Medicines: Some medications, especially penicillin or penicillin-based antibiotics, can trigger allergic responses.
While all of these factors can cause allergies, the biggest cause is likely a combination of genetics and environmental factors. If both of your parents have allergies, you are more likely to develop them. Additionally, exposure to allergens, such as pollen or dust mites, can also contribute to the development of allergies.
