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Skin Allergy Testing
Skin allergy tests, sometimes referred to as skin intolerance tests, are used to diagnose many common allergies and are widely available through providers offering allergy testing near you.
Make An AppointmentWhat is a Skin Allergy Test?
A skin allergy test is a diagnostic test that helps your provider understand whether specific allergens may be contributing to your symptoms. During testing, small amounts of common allergens are placed on or just under the skin so your provider can watch for a reaction. They also have the advantage of being less invasive than blood allergy tests and provide a good alternative for children or patients who may have an aversion to needles.
Depending on your symptoms and medical history, skin allergy testing may help evaluate reactions to pollen, dust mites, mold, pet dander, certain foods, insect venom, medications, or substances that touch your skin.
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There are several different types of skin tests used by the medical community in the diagnosis of allergies. Each of these tests comes with its own pros and cons. Some tests are better for assessing certain conditions, for example, while other tests are a better fit for certain patients.
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Some conditions, too, including food allergies, are more diagnostically complex and may require additional testing beyond just a skin test. Determining which test is the best option for you should be done in close consultation with your doctor or allergist.
Some skin allergy tests provide results during the same visit, while others, such as patch testing, may take several days and require follow-up visits. Your AllerVie Health care team will recommend the testing option that best fits your symptoms, health history, medications, and care goals.
When Skin Allergy Testing May Help
Allergy symptoms can show up in different ways. Some people notice seasonal congestion or itchy eyes, while others deal with recurring rashes, hives, or reactions after contact with certain products, pets, foods, or outdoor triggers.
Skin allergy testing may be helpful if you experience:
- Sneezing, congestion, or itchy, watery eyes that keep coming back
- Rashes, hives, itching, or eczema-like flare-ups
- Symptoms that seem worse around pets, dust, mold, or pollen
- Skin reactions after using certain products, fragrances, metals, or materials
- Possible reactions to insect stings or medications
- Allergy symptoms that interfere with sleep, work, school, exercise, or everyday routines
Finding out what may be triggering your symptoms can help you make more informed choices at home, outdoors, at work, and in your daily routine.
Types Of Skin Allergy Tests
There are several types of skin allergy tests. Your care team will review your symptoms, suspected triggers, medical history, age, medications, and the type of reaction your provider is evaluating.
Your AllerVie provider will explain which test is recommended, what to expect during the process, and how the results may guide your care plan.
Intradermal Test
An intradermal test involves placing a small amount of allergen just under the skin. This type of testing may be used when your provider needs additional information after another test or when evaluating certain suspected allergies, such as insect venom or medication allergies.
In many cases, your care team can observe the testing area for a reaction during the same visit, often within about 15 to 20 minutes. Because intradermal testing involves a small injection under the skin, your provider will determine whether it is the right fit based on your symptoms, health history, age, medications, and comfort level.
Patch Test
Patch testing is often used when a provider suspects contact dermatitis or a delayed skin reaction. During the test, small patches containing possible allergens are placed on the skin, usually on the back. The patches remain in place for a set period of time, and you return for follow-up visits so your provider can check for delayed reactions.
Patch testing can help identify triggers related to products, metals, fragrances, preservatives, or other substances that come into contact with your skin.
Skin Prick or Scratch Test
A skin prick test, sometimes called a scratch test, is commonly used to test for reactions to allergens such as pollen, dust mites, mold, pet dander, and certain foods. During the test, small amounts of allergens are placed on the skin, usually on the arm or upper back, and the skin is gently pricked or scratched.
Results are often available within 15 to 20 minutes. If a reaction appears, your provider can use that information to help identify possible triggers and discuss next steps.
Need Help Finding the Right Allergy Test?
You do not have to figure out the right test on your own. Your symptoms, medical history, medications, and suspected triggers all help determine which allergy testing option may be most appropriate.
An AllerVie Health provider can review what you have been experiencing, explain your testing options, and help you take the next step toward answers, relief, and a personalized care plan.
Types of Allergies a Skin Test Reveals
Skin allergy testing may help uncover triggers that affect everyday life, from the air you breathe to the products that touch your skin. Depending on your symptoms, your provider may recommend testing for environmental, indoor, skin-contact, food-related, or other allergy triggers.
Skin tests can help diagnose food allergies; however, given the complexities of food allergies, skin tests are not typically the only diagnostic procedure involved in diagnosing these conditions. Patients with suspected food allergies may require additional testing. Skin allergy tests are popular due to their simplicity and to the fact that they are not invasive procedures.
RISKS OF SKIN ALLERGY TESTING
Skin allergy testing is performed in a medical setting so your care team can monitor your reaction and support you throughout the process.
The most common reactions are temporary itching, redness, swelling, or small raised bumps at the testing site. These reactions are part of what helps your provider understand whether your body may be responding to a specific allergen.
Severe reactions are rare, but they can happen. This is one reason skin allergy testing is performed under medical supervision.
Skin testing may not be the right fit for every patient. Your provider may recommend a different testing option if you have a history of severe allergic reactions, certain skin conditions, or take medications that could interfere with results. In some cases, blood allergy testing may be recommended instead.
Allergic response
Typically swollen itchy red bumps and blisters.
Severe allergic reaction
While rare, this is why tests are performed under medical supervision.
How to Prepare for a Skin Allergy Test
- Avoid applying any creams, lotions, or perfumes to the test area on the day of the test.
- Patients with excess hair in the testing area will need to shave the testing area.
- Stop taking certain medications before skin testing, such as:
- OTC antihistamines
- Heartburn medications
- Tricyclic antidepressants
- Asthma medication
Your allergist can develop a plan for how long you should eliminate the use of these medications before your test.
WHAT HAPPENS AFTER THE SKIN ALLERGY TEST?
After your skin test, your allergist will go over the results with you very carefully. This means making a treatment plan and an action plan that can help you stay away from allergens that make your symptoms worse. No matter what kind of allergy you have, the first step in treating it is to stay away from allergens.
If an allergen is found to be causing a severe reaction, you may also need to talk about other treatments, such as injectable epinephrine. Your allergist may also suggest changes to your home, workplace, or daily habits that will make you less likely to be exposed to dangerous allergens.