Hello,

Allergy testing is performed by a allergy specialist to determine whether your body has an allergic reaction to a known substance. The examine can be in the form of a blood or skin test (prick/patch). Allergy testing can determine which particular pollens, molds, or other substances you’re allergic to. You may need medication to treat your allergies. Alternatively, you can try to avoid your allergy triggers. Before your allergy test, your doctor will ask you about your lifestyle, family history, and more.

Skin Prick test , also called a puncture or scratch test, checks for immediate allergic reactions to as many as 50 different substances at once. This test is usually done to identify allergies to pollen, mold, pet dander, dust mites and foods. In adults, the test is usually done on the forearm. Children may be tested on the upper back. This type of testing uses needles (lancets) that barely penetrate the skin's surface. You won't bleed or feel more than mild, momentary discomfort.

For more details on Allergy you can check Careers360:

https://www.careers360.com/courses/allergy-and-immunology-course

Best Wishes!