Answer:
I believe the answer you're looking for is Allergy.
It is a damaging immune response by the body to a substance, especially pollen, fur, a particular food, or dust, to which it has become hypersensitive.
Explanation: What is the medical definition of allergy?
An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are: Pollen. Dust mites.
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Hope this helps you out.
