Contact Dermatitis

Editor: V. Dimov, M.D., Allergist/Immunologist, Cleveland Clinic Florida, Clinical Associate Professor, FAU Charles E. Schmidt College of Medicine

Contact dermatitis is a condition in which the skin becomes red, sore, or inflamed after direct contact with a substance. There are two kinds of contact dermatitis: irritant and allergic. Contact dermatitis affects between 1.5% and 5% of people.

Contact dermatitis
Patch Test Procedure
SkinSAFE - database of safe skincare products, listed based on ingredients from your patch test
Videos explaining each contact allergen:
Hives (urticaria) and angioedema
Eczema or atopic dermatitis

Undifferentiated Pruritic Dermatitis - Approach to Treatment (click to enlarge the image).

Contact Dermatitis - An Approach to Treatment (click to enlarge the image).

How to use topical steroid - video by National Eczema Association.

Diagnosis of Pruritus (Itching) (click to enlarge the image).

The SmartPractice Candadian website sells the following ACD panels/groupings: Bakery, Corticosteroids, Cosmetics, Cooling Lubricants (Metalworking), Dental Screening - Patients, Dental Screening - Technicians, Eyelid Dermatitis, Footwear, Hairdressing, Health Care Professionals, Leg Ulcer, Metal Implants, Nail Technicians / Clients, Photoallergens, Photochemicals, Sunscreens, Tattoos / Permanent Make-Up, Textile Dyes.

Allergens included in the FDA-approved T.R.U.E. patch test can be remembered by the mnemonic

Dyes - PPD, blue dye
Antibiotics - neomycin, bacitracin
Metals - nickel, cobalt, potassium dichromate, gold
Anesthetics - caine mix
Glues - resins, colophony
Emolients - wool alcohol/lanolin
Rubber - carba mix, mercapto, thiuram

Preservatives - Formaldehyde/Brinopol/Thimerosal/Quaternium-15, Iodopropynyl, MCI/MI, Diazolidinyl urea, Parabens, Methyldibromo, Ethylenediamine

Related reading:

Free & Clear™ Product Line
RoBathol™ Bath Oil
Patient Guide to Patch Testing
Low Nickel Diet in Allergic Contact Dermatitis to Nickel
American Contact Dermatitis Society Core Allergen Series (PDF)
Hair dye-induced allergic contact dermatitis
Irritant contact dermatitis based on occupation
Surgery-Related Contact Dermatitis
Contact Dermatitis: A Practice Parameter–Update 2015. JACI In-Practice.
Contact Dermatitis Allergen Information
Related blog posts from AllergyNotes

Published: 07/12/2008
Updated: 09/18/2022

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