Patch Testing: Uncovering the Root Causes of Skin Allergies

By: Dr. Calvin Williams


Patch Testing at Essential Dermatology Group, PLLC in Bedford, Texas: Uncovering the Root Cause of Skin Allergies


At Essential Dermatology Group, PLLC in Bedford, Texas, we are dedicated to providing comprehensive and personalized skincare solutions to our patients. One of the key services we offer is patch testing, a vital diagnostic tool for identifying the underlying causes of allergic contact dermatitis and other skin reactions. In this blog post, we will explore what patch testing is, how it works, and how this valuable service can help our patients achieve healthier, more comfortable skin. If you are struggling with eczema in Bedford, TX, give us a call, as patch testing maybe the right solution for you. 

What is Patch Testing?

Patch testing is a non-invasive diagnostic procedure that helps dermatologists identify specific allergens causing skin allergies, irritation, or contact dermatitis in patients. By pinpointing the allergens responsible for skin reactions, our skilled dermatologists at Essential Dermatology Group, PLLC can provide targeted treatment recommendations and lifestyle modifications to reduce or eliminate symptoms.

How Does Patch Testing Work?

Patch testing at our Bedford, Texas dermatology clinic involves applying small amounts of various allergens to the patient's skin using adhesive patches. These patches are typically placed on the upper back and remain in place for 48 hours. After this period, our dermatologist will remove the patches and evaluate the skin for any reactions. A follow-up appointment is usually scheduled within a week to assess delayed reactions and confirm the results. A common type used for this test is the True Test, which provides results for over 30 common allergens. 

Patch testing can assess for a wide range of allergens, including but not limited to:     

  • Metals, such as nickel or cobalt     
  • Fragrances and preservatives found in cosmetics and personal care products     
  • Ingredients in topical medications, such as corticosteroids or antibiotics     
  • Rubber and latex components     
  • Hair dye ingredients     
  • Preservatives that are found in cosmetic products   
  • Glues that are used in arts and crafts or beauty trends

The Benefits of Patch Testing in Bedford, TX at Essential Dermatology Group, PLLC:  

  1. Accurate diagnosis: Patch testing provides valuable information to our dermatologists, allowing them to accurately diagnose allergic contact dermatitis and other skin allergies. An accurate diagnosis is crucial in creating an effective treatment plan tailored to the patient's specific needs.   
  2. Personalized treatment: Once the allergens causing skin reactions are identified, our dermatologists can recommend targeted treatments and skincare products that avoid or minimize contact with the allergens. This may include prescribing topical medications, suggesting alternative products, or recommending lifestyle changes to reduce exposure to the allergens.   
  3. Improved quality of life: Identifying and addressing the root cause of skin allergies can significantly improve a patient's quality of life. By minimizing or eliminating contact with allergens, patients can experience fewer skin reactions, reduced itching and discomfort, and an overall improvement in their skin's health and appearance.   
  4. Prevention of long-term skin damage: Persistent skin allergies and inflammation can lead to long-term skin damage, such as scarring or discoloration. By identifying and addressing the cause of the allergic reaction, patch testing can help prevent ongoing skin damage and promote healthier skin.


Patch testing is a valuable diagnostic tool that can help our patients uncover the root cause of their skin allergies and achieve healthier, more comfortable skin. If you are struggling with unexplained skin reactions or are struggling with eczema treatment in the Bedford, TX or the larger Tarrant County area, give us a call and schedule a consultation with one of our expert  dermatologists. We are here to provide you with the personalized care and expertise you deserve on your journey to better skin health.

* All information subject to change. Images may contain models. Individual results are not guaranteed and may vary.