Erin M. Warshaw, MD, MS
Researcher and Co-Director, Park Nicollet Contact Dermatitis Clinic
About

Other offices: Co-Director, Park Nicollet Contact Dermatitis Clinic

Academic appointment: Professor, Dermatology, University of Minnesota, Minneapolis

Year joined the Institute: 2017

Education and training: MD, residency (dermatology) and internship (medicine/pediatrics), Emory University School of Medicine, Atlanta; MS in clinical research, University of Minnesota.

Overview/research interests: Clinical trials, contact dermatitis, cutaneous fungal diseases, teledermatology

Current research activities and funding: North American Contact Dermatitis Group Database Studies (funded and unfunded), Formaldehyde Content in Tattoo Ink (funder: American Contact Dermatitis Society) and Methylisothiazolinone Content in Consumer Dish Soap (unfunded; cooperative study with the National Institute of Occupational Safety and Health).
Publications While At HealthPartners
selected publications
Journal Article
  • Allergic or not: final interpretation of doubtful patch test reactions from the North American Contact Dermatitis Group, 2019-2020. 
    Dermatitis. 2024
  • More than just methylisothiazolinone: retrospective analysis of patients with isothiazolinone allergy in North America, 2017-2020. 
    Journal of the American Academy of Dermatology. 2024
  • Patch testing with nickel, cobalt, and chromium in patients with suspected allergic contact dermatitis. 
    Dermatitis. 2024
  • Sulfites: allergen of the year 2024. 
    Dermatitis. 2024
  • A "nonallergen" strikes back: allergic contact dermatitis to parabens in triamcinolone ointment. 
    Dermatitis. 2023
  • Allergic contact cheilitis due to candelilla wax. 
    Dermatitis. 2023
  • Allergic contact dermatitis to panthenol in "hypoallergenic" products. 
    Dermatitis. 2023
  • Co-reactivity of glucosides: retrospective analysis of North American Contact Dermatitis Group Data 2019-2020. 
    Contact dermatitis. 2023
  • Contact allergens in over-the-counter topical antihistamine and mast cell stabilizer ophthalmic agents. 
    Dermatitis. 2023
  • Going green and adhesive-free: snap-in reusable menstrual pads for tampon and pad intolerance. 
    Dermatitis. 2023
  • North American Contact Dermatitis Group patch test results: 2019-2020. 
    Dermatitis. 2023
  • Patch testing to chlorhexidine digluconate, 1% aqueous: North American Contact Dermatitis Group experience, 2015-2020. 
    Dermatitis. 2023
  • Patch testing to paraphenylenediamine: the North American Contact Dermatitis Group experience (1994-2018). 
    Dermatitis. 2023
  • Patch testing with benzophenone-3 and -4: the North American Contact Dermatitis Group experience, 2013-2020. 
    Dermatitis. 2023
  • Patch testing with cobalt in adults: a North American Contact Dermatitis Group experience, 2001-2018. 
    Dermatitis. 2023
  • Popular sunscreens marketed to individuals with skin of color: cost, marketing claims, and allergenic ingredients. 
    Journal of the American Academy of Dermatology. 2023
  • Prevalence and trend of allergen sensitization in patients with cheilitis referred for patch testing, North American Contact Dermatitis Group data, 2001-2018. 
    Contact dermatitis. 2023
  • Trends in the prevalence of methylchloroisothiazolinone/methylisothiazolinone contact allergy in North America and Europe. 
    JAMA dermatology. 2023
  • Age-related differences in patch testing results among children: analysis of North American Contact Dermatitis Group Data, 2001-2018. 
    Journal of the American Academy of Dermatology. 2022
  • Allergens in patients with a diagnosis of seborrheic dermatitis, North American Contact Dermatitis Group data, 2001-2016. 
    Journal of the American Academy of Dermatology. 2022
  • Allergic contact dermatitis from dipropylene glycol in hydrocortisone lotion. 
    Contact dermatitis. 2022
  • Contact allergens in over-the-counter topical vasoconstricting ophthalmic agents. 
    Dermatitis. 2022
  • Contact allergens in prescription topical ophthalmic medications. 
    Dermatitis. 2022
  • Contact dermatitis associated with hair care products: a retrospective analysis of the North American Contact Dermatitis Group Data, 2001-2016. 
    Dermatitis. 2022
  • Hand and foot dermatitis in patients referred for patch testing: analysis of North American Contact Dermatitis Group Data, 2001-2018. 
    Journal of the American Academy of Dermatology. 2022
  • Medical adhesive allergens: retrospective analysis of cross-sectional data from the North American Contact Dermatitis Group, 2001-2018. 
    Journal of the American Academy of Dermatology. 2022
  • Patch test reactions associated with topical medications: a retrospective analysis of the North American Contact Dermatitis Group data (2001-2018). 
    Dermatitis. 2022
  • Patch testing to carvone: North American Contact Dermatitis Group Experience, 2009 to 2018. 
    Dermatitis. 2022
  • Patch testing to ethylhexylglycerin: The North American Contact Dermatitis Group Experience, 2013-2018. 
    Dermatitis. 2022
  • Patch testing with ammonium persulfate: the North American Contact Dermatitis Group Experience, 2015-2018. 
    Journal of the American Academy of Dermatology. 2022
  • Patch testing with cobalt in children and adolescents: North American contact dermatitis group experience, 2001-2018. 
    Contact dermatitis. 2022
  • Patch testing with glucosides: the North American Contact Dermatitis Group experience, 2009-2018. 
    Journal of the American Academy of Dermatology. 2022
  • Prevalence and trend of allergen sensitization in patients with a diagnosis of stasis dermatitis referred for patch testing, North American contact dermatitis group data, 2001-2016. 
    Archives for Dermatological Research. Archiv für Dermatologische Forschung. 2022
  • Shoe allergens: a retrospective analysis of cross-sectional data from the North American Contact Dermatitis Group, 2005-2018. 
    Dermatitis. 2022
  • A cautionary tale: potential for irritant patch test reactions to dicetyldimonium chloride (Quaternium-31). 
    Dermatitis. 2021
  • A mini-epidemic of suspected contact dermatitis to Delta Airlines uniforms. 
    Dermatitis. 2021
  • Allergic contact dermatitis due to polyvinylpyrrolidone (PVP)/eicosene copolymer. 
    Contact dermatitis. 2021
  • Contact dermatitis associated with musical instruments: North American Contact Dermatitis Group Data, 2001-2018. 
    Dermatitis. 2021
  • Contact dermatitis from an azelaic acid-containing gel. 
    Contact dermatitis. 2021
  • Contact dermatitis in music professionals referred for patch testing: North American Contact Dermatitis Group data, 1996-2018. 
    Contact dermatitis. 2021
  • Contact dermatitis to personal care products is increasing (but different!) in males and females: North American Contact Dermatitis Group data, 1996-2016. 
    Journal of the American Academy of Dermatology. 2021
  • Eyelid dermatitis in patients referred for patch testing: retrospective analysis of North American Contact Dermatitis Group data, 1994-2016. 
    Journal of the American Academy of Dermatology. 2021
  • Formaldehyde release from predispersed tattoo inks: analysis using the chromotropic acid method. 
    Dermatitis. 2021
  • Hand dermatitis in adults referred for patch testing: analysis of North American Contact Dermatitis Group Data, 2000 to 2016. 
    Journal of the American Academy of Dermatology. 2021
  • Hand eczema in children referred for patch testing: North American Contact Dermatitis Group Data, 2000-2016. 
    British Journal of Dermatology. 2021
  • Importance of supplemental patch testing beyond a screening series for patients with dermatitis: The North American Contact Dermatitis Group Experience. 
    JAMA dermatology. 2021
  • Inter-rater variability in patch test readings and final interpretation using store-forward teledermatology. 
    Contact dermatitis. 2021
  • Isothiazolinone detection in dish soap and personal care products: comparison of Lovibond Isothiazolinone Test Kit and ultrahigh-performance liquid chromatography-tandem mass spectrometry. 
    Dermatitis. 2021
  • It is easy being green and low allergen! Hypoallergenic and environment-friendly laundry detergents and travel hand soaps. 
    Dermatitis. 2021
  • Men's facial moisturizers in the metrosexual era. 
    Dermatitis. 2021
  • Our approach to textile dermatitis: in-clinic dye extraction. 
    Dermatitis. 2021
  • Patch testing of mercaptobenzothiazole and mercapto mix: the North American Contact Dermatitis Group Experience, 1994-2016. 
    Dermatitis. 2021
  • Patch testing to methyldibromoglutaronitrile/phenoxyethanol: North American Contact Dermatitis Group Experience, 1994-2018. 
    Dermatitis. 2021
  • Patch testing with carmine 2.5% in petrolatum by the North American Contact Dermatitis Group, 2011-2012. 
    Dermatitis. 2021
  • Patch testing with sodium disulfite: North American Contact Dermatitis Group experience, 2017 to 2018. 
    Contact dermatitis. 2021
  • Patch testing with tocopherol and tocopherol acetate: the North American Contact Dermatitis Group Experience, 2001 to 2016. 
    Dermatitis. 2021
  • Patch testing: the patient experience. 
    Dermatitis. 2021
  • Patients with patch test reactions associated with eye care products: Retrospective analysis of North American contact dermatitis group data, 2001-2018. 
    Contact dermatitis. 2021
  • Positive patch test reactions to carba mix and thiuram mix: the North American Contact Dermatitis Group Experience (1994-2016). 
    Dermatitis. 2021
  • Prevalence and trend of allergen sensitization in adults and children with atopic dermatitis referred for patch testing, North American Contact Dermatitis Group data, 2001-2016. 
    The journal of allergy and clinical immunology. In practice. 2021
  • Prevalence and trend of allergen sensitization in patients referred for patch testing with a final diagnosis of psoriasis: North American Contact Dermatitis Group data, 2001-2016. 
    Contact dermatitis. 2021
  • Prevalence and trend of allergen sensitization in patients with nummular (discoid) eczema referred for patch testing: North American Contact Dermatitis Group data, 2001-2016. 
    Contact dermatitis. 2021
  • Scalp involvement in patients referred for patch testing: retrospective cross-sectional analysis of North American Contact Dermatitis Group data, 1996 to 2016. 
    Journal of the American Academy of Dermatology. 2021
  • Axillary allergic contact dermatitis to topical clindamycin. 
    Contact dermatitis. 2020
  • Contact dermatitis associated with nail care products: retrospective analysis of North American Contact Dermatitis Group Data, 2001-2016. 
    Dermatitis. 2020
  • Cutaneous reactions to aluminum. 
    Dermatitis. 2020
  • Evaluation of patch test findings in patients with anogenital dermatitis. 
    JAMA dermatology. 2020
  • Facial dermatitis in male patients referred for patch testing: retrospective analysis of North American Contact Dermatitis Group data, 1994 to 2016. 
    JAMA dermatology. 2020
  • Methylisothiazolinone in children's nail polish. 
    Pediatric Dermatology. 2020
  • Navigating tattoo-related allergic dermatitis: beyond pigments. 
    Dermatitis. 2020
  • Patch testing to diphenylguanidine by the North American Contact Dermatitis Group (2013-2016). 
    Dermatitis. 2020
  • Relevant contact allergy to benzisothiazolinone in a personal care product. 
    Dermatitis. 2020
  • Safety checks in patch clinic: 5 hurdles in the patch testing obstacle course. 
    Dermatitis. 2020
  • Summertime dermatitis: when the repellent is the culprit, not the bugs!. 
    Dermatitis. 2020
  • Tolerability of hair cleansing conditioners: a double-blind randomized, controlled trial designed to evaluate consumer complaints to the U.S. Food and Drug Administration. 
    Cutaneous and Ocular Toxicology. 2020
  • Airborne allergic contact dermatitis: management and responsible allergens on the American Contact Dermatitis Society Core Series. 
    Dermatitis. 2019
  • Allergic contact dermatitis caused by mupirocin and pimecrolimus. 
    Contact dermatitis. 2019
  • Allergic contact dermatitis to a self-adherent bandage wrap in a formaldehyde-allergic patient. 
    Dermatitis. 2019
  • Allergic contact dermatitis to crisaborole. 
    Dermatitis. 2019
  • Allergic contact dermatitis to licorice root extract. 
    Dermatitis. 2019
  • Allergic contact dermatitis to slime: the epidemic of isothiazolinone allergy encompasses school glue. 
    Pediatric Dermatology. 2019
  • Allergic dermatitis to Dyclonine (Dyclocaine). 
    Dermatitis. 2019
  • Alternatives for allergens in the 2018 American Contact Dermatitis Society Core Series: report by the American Contact Alternatives Group. 
    Dermatitis. 2019
  • Colophony (rosin) allergy: more than just Christmas trees. 
    Minnesota Medicine. 2019
  • Epidemiology of nickel sensitivity: retrospective cross-sectional analysis of North American Contact Dermatitis Group data 1994-2014. 
    Journal of the American Academy of Dermatology. 2019
  • Formaldehyde release from baby wipes: analysis using the chromotropic acid method. 
    Dermatitis. 2019
  • Formaldehyde release from clothing and upholstery fabrics using the chromotropic acid method. 
    Dermatitis. 2019
  • Formaldehyde release from personal care products: chromotropic acid method analysis. 
    Dermatitis. 2019
  • Genital dermatitis in a transgender patient returning from Thailand: a diagnostic challenge. 
    Travel Medicine and Infectious Disease. 2019
  • Hold the spice: allergy to garlic and sulfites-possible relevance in a patient with cheilitis granulomatosa. 
    Contact dermatitis. 2019
  • Isothiazolinone content of US consumer adhesives: ultrahigh-performance liquid chromatographic mass spectrometry analysis. 
    Dermatitis. 2019
  • Occupationally related nickel reactions: a retrospective analysis of the North American Contact Dermatitis Group Data 1998-2016. 
    Dermatitis. 2019
  • Oh my glucosides! Occult sources in medical products. 
    Dermatitis. 2019
  • Patients with negative patch tests: retrospective analysis of North American Contact Dermatitis Group (NACDG) data 2001-2016. 
    Journal of the American Academy of Dermatology. 2019
  • Pigments in American tattoo inks and their propensity to elicit allergic contact dermatitis. 
    Journal of the American Academy of Dermatology. 2019
  • Safety equipment: when protection becomes a problem. 
    Contact dermatitis. 2019
  • Use of essential oils: a general population survey. 
    Contact dermatitis. 2019
  • Allergic contact dermatitis secondary to the use of a bandage impregnated with benzalkonium chloride. 
    Contact dermatitis. 2018
  • Chemoprevention of basal and squamous cell carcinoma with a single course of fluorouracil, 5%, cream: a randomized clinical trial. 
    JAMA dermatology. 2018
  • Clinically relevant reactions to thimerosal (the "nonallergen") exist!. 
    Dermatitis. 2018
  • Contact dermatitis associated with skin cleansers: retrospective analysis of North American Contact Dermatitis Group Data 2000-2014. 
    Dermatitis. 2018
  • Epidemiology of pediatric nickel sensitivity: retrospective review of North American Contact Dermatitis Group (NACDG) data 1994-2014. 
    Journal of the American Academy of Dermatology. 2018
  • Isothiazolinone in residential interior wall paint: a high-performance liquid chromatographic-mass spectrometry analysis. 
    Dermatitis. 2018
  • Pet consort dermatitis: the importance of asking about pets. 
    Dermatitis. 2018
  • Risk assessment of the skin sensitization induction potential of Kathon CG in rinse-off and leave-on personal care and cosmetic products. 
    Dermatitis. 2018
  • Single question burden of disease assessment in patients referred for patch testing. 
    International Journal of Dermatology. 2018
  • Survey of patch test business models in the United States by the American Contact Dermatitis Society. 
    Dermatitis. 2018
  • Allergenic ingredients in facial wet wipes. 
    Dermatitis. 2017
  • Allergenic ingredients in personal hygiene wet wipes. 
    Dermatitis. 2017
  • Allergic contact dermatitis from methylisothiazolinone in residential wall paint. 
    Dermatitis. 2017
  • Epidemic of isothiazolinone allergy in North America: prevalence data from the North American Contact Dermatitis Group, 2013-2014. 
    Dermatitis. 2017
  • North American Contact Dermatitis Group patch test results 2013-2014. 
    Dermatitis. 2017
  • Occupational contact dermatitis in North American print machine operators referred for patch testing: retrospective analysis of cross-sectional data From the North American Contact Dermatitis Group 1998 to 2014. 
    Dermatitis. 2017
  • Occupational contact dermatitis in North American production workers referred for patch testing: retrospective analysis of cross-sectional data from the North American Contact Dermatitis Group 1998 to 2014. 
    Dermatitis. 2017
  • Occupational contact dermatitis in mechanics and repairers referred for patch testing: retrospective analysis from the North American Contact Dermatitis Group 1998-2014. 
    Dermatitis. 2017
  • Patch test reactions to corticosteroids: retrospective analysis from the North American Contact Dermatitis Group 2007-2014. 
    Dermatitis. 2017
  • Periorbital allergic contact dermatitis due to ketotifen. 
    Dermatitis. 2017
  • Piercing and metal sensitivity: extended analysis of the North American Contact Dermatitis Group Data, 2007-2014. 
    Dermatitis. 2017
  • Positive patch-test reactions to essential oils in consecutive patients from North America and Central Europe. 
    Dermatitis. 2017
  • Sulfites: no longer a zebra?. 
    Dermatitis. 2017
  • The latest occult "hypoallergenic" allergen: ethylhexylglycerin. 
    Dermatitis. 2017
  • Utility of store and forward teledermatology for skin patch test readings. 
    Dermatitis. 2017
  • Wet wipe allergens: retrospective analysis from the North American Contact Dermatitis Group 2011-2014. 
    Dermatitis. 2017
    • Editorial Article
  • Currently relevant p-phenylenediamine patch test reactions associated with hair dye and nonscalp anatomic areas: retrospective cross-sectional analysis of North American Contact Dermatitis Group data, 2001 to 2016 [editorial]. 
    Journal of the American Academy of Dermatology.  84. 2021
  • Methylisothiazolinone in "dermatology-recommended" sunscreens: an important mimicker of photoallergic contact dermatitis [editorial]. 
    Photodermatology, Photoimmunology and Photomedicine.  37. 2021
  • Clogs are a fashionable option in cases of shoe contact dermatitis [editorial]. 
    Dermatitis.  31. 2020
  • Do it yourself without allergic contact dermatitis: safe household cleaning product alternatives [editorial]. 
    Dermatitis.  31. 2020
  • Prescription-strength topical corticosteroids available over the counter: cross-sectional study of 80 stores in 13 United States cities [editorial]. 
    Journal of the American Academy of Dermatology.  82. 2020
  • Allergenic ingredients in hand wet wipes [editorial]. 
    Dermatitis.  28. 2017
    • Conference Poster
  • Allergenic ingredients in facial wet wipes [poster]
    2017
  • Allergenic ingredients in hand wet wipes [poster]
    2017
  • Allergenic ingredients in personal hygiene wet wipes [poster]
    2017
  • Ethyl cyanoacrylate in Dexcom glucose sensor adhesive [poster]
    2017
  • Periorbital allergic contact dermatitis due to ketotifen [poster]
    2017
  • Wet wipe allergens: retrospective cross-sectional analysis of NACDG data from 2011-2014 [poster]
    2017
    • Review
  • Allergic contact dermatitis to pramoxine (pramocaine) [review]. 
    Dermatitis. 2021
  • Acrylates: new sources and new allergens [review]. 
    Clinical and Experimental Dermatology. 2020
  • Chemical identification and confirmation of contact allergens [review]. 
    Dermatitis. 2020
  • Parabens: contact (non) allergen of the year [review]. 
    Dermatitis. 2019
  • Skin sensitization induction risk assessment of common ingredients in commercially available cleansing conditioners [review]. 
    Dermatitis. 2019
  • The medical necessity of comprehensive patch testing [review]. 
    Dermatitis. 2018
  • American Contact Dermatitis Society core allergen series: 2017 update [review]. 
    Dermatitis. 2017
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