What does Allergy scratch test mean?

Allergy scratch test meaning in Medical Dictionary

A test by which a tiny drop of the suspected allergy-provoking compound (allergen) is put regarding the skin therefore the skin is then carefully scratched through fall with a sterile needle. In the event that skin reddens and, more to the point, if it swells, the test is look over as positive, and sensitivity to that particular compound is known as probable.