Patch Testing

Experiencing Chronic Rashes? Get Diagnosed with Patch Testing

Chronic rashes due to allergic contact dermatitis can have a variety of causes and not knowing what can trigger these flare ups can be frustrating. Thankfully, Patch Testing at Knott Street Dermatology can determine the causes, allowing patients to make the necessary adjustments to prevent these rashes from occurring in the future.

Patch testing differs from blood allergy testing, it involves applying pads that contain suspected allergenic substances from the North American Contact Dermatitis Society’s core allergen list to the entire surface of the back. These common chemicals can be found in jewelry, skin care products, soaps, cosmetics, fragrances, and clothing fabric.

Patients are first assessed by a provider to determine if patch testing is appropriate for the type of rash, and then insurance authorization is obtained to determine out-of-pocket expenses for the testing.

Once allergenic substances causing the allergic contact dermatitis flare ups are determined, patients will finally be able to prevent future breakouts!

BEFORE & AFTER

GALLERY

Checkout our before and after gallery where we feature a few our recent patients. 

WHICH

PRODUCTS

ARE RIGHT FOR YOU?

OUR

TEAM

Our team is made up of experienced professionals
excited to help and provide personalized care just for you.

Alicia McCarthy, ND

Dr. Alicia McCarthy earned her Bachelor of Science in Kinesiology degree from California State University of Fullerton in 2008 and her Naturopathic Medical degree in 2017 from National University of Natural Medicine in Portland, OR. The twelve years Dr. McCarthy spent working in emergency medicine as an EMT set the foundation for the provider she is today. She now specializes in aesthetic medicine, dedicating her continuing education and practice to staying current on the latest techniques and products. Dr. McCarthy believes in aging gracefully. She takes the time to sit down with each patient and find out what this means for them.

Prior to joining Knott Street Dermatology, Dr. McCarthy had her own practice in Lake Oswego focused on aesthetic medicine, hormone balancing, thyroid conditions, and IV medicine.

Originally from Southern California, Dr. McCarthy has lived in Portland for the last eleven years. When she is not working Dr. McCarthy stays busy with her two young kids, husky pup, and husband. They enjoy spending time outside, camping, swimming, and playing at the park.

Olivia | Knott Street Dermatology | Skin Care Center | Portland Oregon

Olivia Gill LE,CAE

Olivia graduated from Spectrum Advanced Aesthetics in 2015 and has been working full time as a Certified Advanced Esthetician and Laser Safety Officer for the last 6 years. Olivia’s favorite part about her job is helping her patients feel more confident in their own skin. She takes pride in tailoring each skin care regimen and treatment plan to fit everyone’s lifestyle and budget. When she’s not pampering patients, she enjoys camping, traveling, and quality time spent with her family, husband, and Corgi puppy- Ginger!

Contact Us

If you have any questions, concerns, or would like to schedule an appointment please let us know. 

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FIVE STAR

SERVICE

FIVE STARS Rating | Knott Street Dermatology | Best Dermatologist | Portland OR

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