Allergy Skin Testing
Asthma & Allergy Care, P.C. treats children and adults with suspected allergies. Allergy skin testing is one of the tools used to identify the substances that may be causing symptoms.
What Is Allergy Skin Testing
Allergy skin testing checks how the skin reacts to small amounts of common allergens. A small reaction on the skin, such as a raised bump or redness, indicates a possible allergy to that substance.
The prick test is the most common method. A drop of an allergen extract is placed on the skin, usually on the forearm or back, and the skin is lightly pricked underneath the drop. The area is then watched for a reaction.
An intradermal test may be used when more information is needed. A small amount of allergen is injected just under the skin. This method is more sensitive than the prick test and is often used for specific allergens, including insect venom or certain medications.
Why Get Tested
Skin testing helps identify the specific allergens responsible for symptoms such as sneezing, congestion, itchy eyes, skin reactions, or breathing difficulty. Knowing the exact trigger allows for more targeted avoidance and care.
Results guide the allergist in building a treatment plan. This may include avoidance strategies, medication choices, or a discussion of immunotherapy, depending on what the testing shows and the patient's history.
Testing is available for both children and adults, and the approach may be adjusted based on age, medical history, and the allergens in question.
What to Expect and How to Prepare
Understanding the appointment and preparing beforehand helps the testing process go smoothly for children and adults alike.
Appointment Duration
The appointment includes time for the test itself and a waiting period while reactions develop. The allergist reviews the patient's history before testing begins.
The Procedure
Allergens are applied to the skin, usually on the forearm or back. The skin is monitored, and the allergist reads the results by measuring any bumps or redness that appear.
Preparing for Testing
Certain medications, including antihistamines, can interfere with results and may need to be stopped before the appointment. Wearing loose clothing that allows easy access to the arms or back is recommended.
Interpreting Results and Limitations
Reading the Results
A positive result shows a raised bump or redness at the test site, suggesting sensitivity to that allergen. A negative result shows no reaction, suggesting the allergen is not a trigger. Results are discussed with the allergist, who explains what they mean in the context of the patient's symptoms and history.
When Testing May Not Be Appropriate
Skin testing may not be suitable for patients with certain skin conditions, those unable to stop specific medications, or those with a history of severe reactions. In these cases, the allergist may recommend a blood test as an alternative way to check for allergen-specific antibodies.
After Testing
Once results are ready, the allergist reviews them with the patient or parent and answers questions. Together, they discuss a treatment plan, which may include avoidance measures, medication, or other next steps based on the findings.
What to Bring to Your Appointment
Insurance card
Any required referral
A list of current medications
New Patient Forms
Completing forms ahead of time can help your appointment go smoothly.
Four New Jersey Offices, Including Saturday Hours
Asthma & Allergy Care, P.C. sees children and adults for allergy skin testing at four office locations, with Saturday appointments available for added convenience.
Book an Appointment