The most common tests for allergic rhinitis are skin prick tests, blood tests, and nasal smears.
Skin Prick Test
The skin prick test is a reliable and cost-effective way to diagnose an allergic reaction. This test involves placing a small drop of allergen on the skin and then pricking the skin with a needle. If a red wheal appears at the site, it is a sign of an allergic reaction.
Blood Tests
Blood tests can also be used to diagnose allergic rhinitis. These tests measure the levels of specific IgE antibodies that indicate an allergic reaction. The results of the blood test can help determine which allergen is causing the allergic reaction, allowing for more targeted treatment.
Nasal Smears
Nasal smears are also used to diagnose allergic rhinitis. These tests involve collecting a sample of mucus from the nose and examining it under a microscope. The presence of eosinophils, a type of white blood cell, indicates an allergic reaction.