Dismiss Modal

Diagnosis

Asthma: Allergy Testing

Choose a preferred language

If you often have allergy symptoms, allergy testing can be helpful. It can help figure out if your symptoms are from allergies. Allergy symptoms can include:

  • Itchy and watery eyes

  • A runny nose

  • Wheezing

  • Sneezing

  • Itchy skin

For some people with asthma, allergies may not affect their nose or eyes. Instead, allergies trigger their asthma symptoms. In some cases, you can tell what you are allergic to. For example, your symptoms may only happen in the spring or fall. But you may need allergy testing to figure out other allergies. 

The healthcare provider will test how you react to allergens. These include:

  • Dust mites

  • Pets

  • Mold

  • Tree, weed, and grass pollen

  • Cockroach droppings

  • Many other substances

Sometimes allergy testing is done with a blood test (IgE). Or it may be done with a challenge test. For this test, you inhale the allergen or take it by mouth. But more often, you have skin testing. There are 2 types of allergy skin tests. One is the skin prick test. The provider pricks your skin using a needle with a small amount of allergen. If you are allergic, the spot will get red, swollen, and itchy. The other test injects a small amount of allergen under the skin.

If you think allergies may trigger your asthma, talk with your healthcare provider about getting tested. Knowing what you are allergic to is helpful. Then you can stay away from the allergens. Your provider may suggest that you get allergy shots (immunotherapy). These can help reduce your allergy and asthma symptoms.

Featured in

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.

Make an Appointment

Make an Appointment

Find a Doctor

Find a Doctor

Find a Location

Find a Location
Related Articles
Read article
Lung Health
Peak Flow Measurement

Detailed information about peak flow measurement, a quick test to measure air flowing out of the lungs.

Read article
Lung Health
All About Asthma

Asthma is a chronic, inflammatory lung disease with recurrent breathing problems.

Read article
Lung Health
Chest X-Ray

A chest X-ray is an imaging test that uses X-rays to look at the structures and organs in your chest. It can help your healthcare provider see how well your lungs and heart are working. Certain heart problems can cause changes in your lungs. Certain diseases can cause changes in the structure of the heart or lungs.

Read article
Lung Health
Pulmonary Function Tests

Pulmonary function tests (PFTs) are noninvasive tests that show how well the lungs are working. Read on to learn what to expect before, during, and after these tests.