Allergy begins when the immune system mistakes harmless substances normally dangerous attackers. The immune system then produces antibodies, which are always on guard for your particular allergen. When you are exposed to the allergen again in the future, these antibodies in the immune system to release chemicals, including histamine, which causes allergic symptoms.
Common triggers of allergy are:
Airborne allergens like pollen, animal dander, dust mites and mold
Some foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk
Insect bites such as bee stings or wasp stings
Drugs, particularly penicillin or penicillin-based antibiotics
Latex or other substances you touch, which may cause allergic skin reactions
Common triggers of allergy are:
Airborne allergens like pollen, animal dander, dust mites and mold
Some foods, especially peanuts, tree nuts, wheat, soy, fish, shellfish, eggs and milk
Insect bites such as bee stings or wasp stings
Drugs, particularly penicillin or penicillin-based antibiotics
Latex or other substances you touch, which may cause allergic skin reactions
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