Patch Testing for Allergies

If you have a persistent or recurring rash, itching, redness, or irritation, the cause may not always be obvious. One possible cause is contact dermatitis, a skin condition that occurs when your skin reacts to something it has come into contact with.

Patch testing is a specialized type of allergy testing used to identify substances that may be triggering these reactions. Unlike skin-prick testing, which is primarily used to evaluate immediate allergic reactions, patch testing looks for delayed skin reactions that can develop hours or even days after exposure.

This type of allergy testing helps provide an accurate diagnosis so you can take control of your skin health and feel better every day.

Dermatological tests to detect certain types of allergies

What is Patch Testing?

During patch testing, small amounts of different substances are placed on your back using adhesive patches. These substances may include ingredients commonly found in cosmetics, skin-care products, fragrances, soaps, shampoos, medications, metals, adhesives, and household products. 

The patches remain in place for several days, after which your allergist examines the skin for signs of a reaction. Additional readings are typically performed over the next several days because some contact allergies take time to appear

This method is one of the most personalized diagnostic tools available for identifying the exact cause of allergic skin reactions.

Who Can Benefit from Patch Testing?

You may benefit from patch testing if you experience:

If you’ve asked yourself, “How do I know if I need patch testing?”, it may be time to consider testing if your symptoms are persistent or unclear.

How the Patch Testing Process Works

Step 1: Application

Small patches containing potential allergens are placed on your back. This process is quick and gentle.

Step 2: Wear Period

You will wear the patches for several days. During this time, you’ll need to keep the area dry and avoid heavy sweating.

Step 3: First Check

You’ll return to our office so we can remove the patches and check for early reactions.

Step 4: Final Reading

A follow-up visit is scheduled to review delayed reactions and confirm results.

Why Choose Park Cities Allergy and Asthma for Patch Testing?

At Park Cities Allergy and Asthma, we provide expert care with a personalized approach. Our goal is to help you find answers and create a plan that works for your lifestyle.

Experienced allergy specialists

State-of-the-art testing methods

Customized care plans based on your results

Focus on long-term allergy management

Benefits of Patch Testing

Patch testing offers many advantages, including:

With the right diagnosis, you can improve skin well-being and reduce flare-ups.

Frequently Asked Questions (FAQ)

No, patch testing is not painful. You may feel mild itching if a reaction occurs, but most patients tolerate the test well.

Patch testing is a highly reliable method for identifying delayed skin allergies when performed by trained specialists.

The full process takes several days, including application and follow-up visits for accurate results.

Don’t let skin allergies affect your daily life. Get clear answers and start feeling better with expert care.

Schedule your patch testing appointment today at Park Cities Allergy and Asthma. Contact us to improve your skin health and take the first step toward lasting relief.

Office Hours

Mon: 9:00am – 4:00pm
Tue: 7:00am – 4:30pm
Wed: 7:00am – 5:30pm
Thu: 7:00am – 3:00pm

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Billing Questions

Contact Felicia Melendez at felicia@pcaaa.com

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4119 Lomo Alto Dr, Dallas, TX 75219