Prevalence of methylchloroisothiazolinone and methylisothiazolinone contact allergy in facial dermatitis: a single centre Irish study. (26th January 2015)

• Record Type: Journal Article
• Authors: Murad, A.; Marren, P.
• Is Part Of: Journal of the European Academy of Dermatology and Venereology. Volume 30:Number 1(2016:Jan.)
• Page Start: 60
• Page End: 62
• Publication Date: 2015-01-26
• Subjects: Dermatology -- Periodicals; Sexually transmitted diseases -- Periodicals; 616.5
• DOI: 10.1111/jdv.12956
• Languages: English
• ISSNs: 0926-9959

Abstract

Abstract: Background: There has been an increase in methylchloroisothiazolinone (MCI) and especially methylisothiazolinone (MI) contact allergy in recent years. Objectives: We examined the prevalence and demography of MCI/MI and MI contact allergy in patients presenting with facial dermatitis. Methods: Eighty patients with facial dermatitis were patch tested to the British Society for Cutaneous Allergy standard series, preservatives and own products between January 2012 and March 2014. Results: A total of 14 (17.5%) patients had positive reactions to this preservative. Five (6.3%) patients tested positive to MCI/MI (0.02%), four (5%) patients tested positive to MI (0.2%) and five (6.3%) patients tested positive to both preparations. Six (7.5%) of these patients were atopic. All patients were female and the mean age was 53.8 years. Sources of allergen were in cosmetics and skin care products. Conclusions: Contact allergies to MCI/MI and MI are commoner than what was reported before and is an emerging cause of facial dermatitis. The detection rate of this allergen was increased by 5% in our cohort since the inclusion of MI (0.2%) in the standard series.