What is Patch Testing?

Patch testing is a diagnostic procedure used to identify allergic contact dermatitis, a skin condition caused by an allergic reaction to certain substances or chemicals that come into contact with the skin. 

Photo of a mother with her toddler

When is Patch Testing Recommended?

It is particularly useful when the cause of a skin condition, like a rash or eczema, is unclear. Patch testing helps determine if an individual is allergic to certain substances like metals (nickel), fragrances, preservatives, or chemicals commonly found in certain products. 

What Can I Expect During the Test?

During patch testing, small quantities of suspected allergens, such as metals, fragrances, or chemicals commonly found in personal care products or occupational settings, are applied to adhesive patches. These patches are then placed on the patient’s skin, typically on the back. Over a specific period, usually 48 hours, the patches remain in place. 

What Can I Expect After Testing?

After removal, the board certified providers at Laguna Allergy will examine the skin for any allergic reactions, like redness, itching, or rash, at the sites where the allergens were applied. 

What are the Benefits?

Patch testing is a crucial tool in identifying the specific allergens responsible for allergic contact dermatitis, helping patients and the team at Laguna Allergy pinpoint the sources of skin reactions and develop effective allergen avoidance strategies.

Schedule Patch Testing in Aliso Viejo, CA

At Laguna Allergy Medical Boutique, Drs. Gillian Bassirpour and Kristen Walters are driven by their passion as board-certified allergists and devoted mothers. Their goal is to deliver exceptional healthcare for both children and adults. In addition to our wide range of services, our boutique also offers a unique retail experience, featuring items like specialized pajamas for babies with eczema and other carefully curated products. To explore how Laguna Allergy can help with allergic reactions, please click the appointment button below or get in touch with us at 949-287-4900.

Middle aged woman with streaks of grey hair


Our dedicated team goes above and beyond to provide personalized and exceptional care, ensuring every patient receives the highest level of attention, comfort, and satisfaction. Call (949) 287-4900 or fill out the form below to get elevated allergy care today!