How does an allergic reaction occur?

      

How does an allergic reaction occur?

  

Answers


Isacko
the substances act as antigens

an antigen-antibody reaction occurs on surface of cells

the cells release a substance called histamine

the histamine causes irritation, itching and may stimulate nasal discharge
Mohaissack answered the question on October 5, 2017 at 11:31


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