Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Test, allergy skin

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Test, allergy skin: Test done on the skin to identify the allergy substance (the allergen) that is triggering the allergic reaction.

A small amount of the suspected allergy-provoking substance is placed on the skin. The skin is then gently scratched through the small drop with a special sterile needle.

If the skin reddens and, more importantly, if it swells, then the test is read as positive and allergy to that substance is considered probable.

Need Expert Advice on Your Condition?

Get a personalized video breakdown and treatment plan from our senior neurosurgeons using your MRI/CT scans.

👉 Request MRI Review