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Patch Testing
Learn what is causing your rash
Patch testing is used for patients with dermatitis to find out whether substances coming into contact with the skin are causing or aggravating their condition. Potential causes of contact dermatitis include fragrances, preservatives, dyes, metals, plants and other chemicals.
When an allergic patient comes into contact with an allergen they are sensitive to, they will develop an itchy eczema like rash that can appear anywhere from 2 days to 2 weeks later. This delayed onset makes identifying the causative agent of contact dermatitis very challenging based on history alone. In patch testing, small aliquots of potential allergens are applied to the skin of the back to replicate a localized allergic contact reaction. At the final reading, allergens that result in eczema are identified and instructions on avoidance are provided. Patch tests differ from skin prick tests, which are used to diagnose systemic allergy and are of limited use in dermatitis.
Learn more about patch testing at the American Academy of Dermatology Association website.
Schedule Your Patch Testing Online
To learn more about patch testing, contact Spring Street Dermatology in SOHO, NYC to schedule a consultation. You can also schedule an appointment online here.
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Contact Dermatitis
Contact dermatitis is a type of eczema that occurs when something that touches skin causes a rash. It can happen immediately or appear up to several weeks later.
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75 Spring Street, Floor 2
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Title | Address | Description |
---|---|---|
SOHO | 75 Spring Street, Floor 2 New York, NY 10012 | 75 Spring Street, Floor 2 |
UPTOWN | 4 West 58th street, 13th Floor New York, NY 10019 | 4 West 58th street, 13th Floor New York, NY 10019 Sun & Sat: 10am-3pm Mon-Fri: 8am-6pm |