Because the venom is a substance foreign to our body, there's an immune reaction here too. You feel a sharp pain, and the ...

Things that cause allergic reactions are called allergens and vary from person to person, like bee stings, medications, shellfish, or peanuts. Once your immune system recognizes the allergen ...

Bee sting Bees do not bite — but they sting ... Appearance: A horsefly bite will become red and raised, and can cause reactions like swelling or pus-filled blisters. Important: In rare cases ...