Question

what is allergy tell????

Answer 1

any thing which fell sensation nd harm our body

Answer 2

We often come across dust,pollen grains, or ear common food items such as milk, seafood, or nuts. These are seemingly harmless substances. However, at times , these substances may cause a massive reaction in the body of some people. On inhaling pollen grains or dust, some people may develop severe cough, constant sneezing and inability to breathe properly.

Thus, allergy is hypersensitivity of the human body to certain substances in the environment