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    Glossary Patch Testing

    diagnostic method to identify skin allergies to specific substances

    Patch testing is a diagnostic procedure used to identify substances that cause allergic contact dermatitis. Small amounts of potential allergens are applied to patches, which are then placed on the skin, usually on the back, for 48 hours. The skin is examined for reactions at 48 hours and again at 72-96 hours to determine if an allergy is present.

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    1. Patch testing with hair cosmetic series in Europe: a critical review and recommendation Contact Dermatitis · 2015 · 47 citations
    2. Patch testing and contact allergen avoidance in patients with lichen planopilaris and/or frontal fibrosing alopecia: A cohort study Journal of the American Academy of Dermatology · 2020 · 35 citations
    3. Photopatch and patch testing in 63 patients with frontal fibrosing alopecia: a case series British Journal of Dermatology · 2018 · 24 citations
    4. Common Allergens Identified Based on Patch Test Results in Patients with Suspected Contact Dermatitis of the Scalp Skin appendage disorders · 2016 · 16 citations
    5. Patch Testing in Allergic Contact Dermatitis from Minoxidil Dermatitis · 2010 · 11 citations
    6. Patch testing procedures in patients suffering from suspected allergic contact dermatitis to minoxidil 1989 · 4 citations
    7. Analysis of Patch Testing for Allergic Contact Dermatitis in Adults Versus Geriatrics: A 7-Year Retrospective Analysis of 342 Positive Patch Test Cases Indian Journal of Dermatology · 2026
    8. Delayed hypersensitivity reaction to intralesional triamcinolone acetonide following treatment for alopecia areata. Intradermal testing. Journal of Dermatological Case Reports · 2015 · 6 citations
    9. Patch tests with commercial hair dye products in patients with allergic contact dermatitis to para-phenylenediamine Indian Journal of Dermatology Venereology and Leprology · 2016 · 6 citations
    10. Contact allergy to essential oils cannot always be predicted from allergy to fragrance markers in the baseline series Contact Dermatitis · 2016 · 23 citations
    11. Pustular allergic contact dermatitis caused by fragrances Contact dermatitis · 2015 · 19 citations
    12. Allergic contact dermatitis from glycerin in a moisturizing cream Contact dermatitis · 2003 · 17 citations
    13. Pustular allergic contact dermatitis from topical minoxidil 5% 2007 · 16 citations
    14. Allergic contact dermatitis from Minoxidil Contact Dermatitis · 1987 · 14 citations
    15. Allergic contact dermatitis from Minoxidil Contact Dermatitis · 1988 · 13 citations
    16. Contact Alopecia: Improvement of Alopecia with Discontinuation of Fluocinolone Oil in Individuals Allergic to Balsam Fragrance Pediatric dermatology · 2016 · 11 citations
    17. Allergic contact dermatitis from minoxidil Contact Dermatitis · 1992 · 9 citations
    18. Toxic epidermal necrolysis caused by skin hypersensitivity to monosulfiram. The BMJ · 1968 · 9 citations
    19. How safe is prescribing oral minoxidil in patients allergic to topical minoxidil? Journal of The American Academy of Dermatology · 2020 · 8 citations
    20. Allergic contact dermatitis from dyes in wigs following diphencyprone treatment Contact dermatitis · 2004 · 8 citations
    21. A Case of Contact Allergic Dermatitis to Topical Minoxidil Cureus · 2021 · 7 citations
    22. Allergic contact dermatitis to topical brimonidine Australasian Journal of Dermatology · 2015 · 6 citations
    23. Facial contact dermatitis due to spironolactone in an anti‐acne cream Contact dermatitis · 1993 · 6 citations
    24. An Unusual Case of Contact Dermatitis Skin appendage disorders · 2017 · 5 citations
    25. Ammonium bisulfite contact dermatitis: face eczema due to a bleaching ointment used during hair‐dying Contact dermatitis · 2006 · 5 citations
    26. Contact Dermatitis Associated with Alopecia and Hyperpigmentation Pediatric Dermatology · 2017 · 3 citations
    27. Iododerma in pregnancy secondary to iodinated multivitamins Australasian Journal of Dermatology · 2015 · 3 citations
    28. Contact dermatitis due to minoxidil Indian Journal of Dermatology Venereology and Leprology · 1991 · 2 citations
    29. Kids are not just little people: Pediatric versus adult dermatology approaches to skin diseases. Part I Clinics in Dermatology · 2015 · 1 citations
    30. Dermatological history and examination Medicine · 2013 · 1 citations