Question

What is Allergic reaction ?!!!


tujhe meri ksm h bs

nhi jana
​

Answer 1

Answer:

Allergic reactions are sensitivities to substances called allergens that come into contact with the skin, nose, eyes, respiratory tract, and gastrointestinal tract. They can be breathed into the lungs, swallowed, or injected.

Explanation:

please mark me brainliest

Answer 2

Answer:

here is your answer hope it helps you good evening have a great day ahead