Journal
CONTACT DERMATITIS
Volume 86, Issue 1, Pages 15-24Publisher
WILEY
DOI: 10.1111/cod.13980
Keywords
allergic contact dermatitis; delayed hypersensitivity; fragrance allergy; hydroperoxides; patch test; prevalence; terpenes
Categories
Funding
- Hud Fonden
- Edvard Welanders Stiftelse
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Contact allergy to oxidized linalool and limonene is on the rise, with symptoms usually appearing on Day 3/4 post-exposure. Patients with this allergy are typically younger and predominantly female. Stronger reactions are associated with older age and multiple fragrance allergies.
Background Contact allergy to oxidized (ox.) linalool and ox. limonene has been reported to have a high prevalence, raising the question of inclusion into the baseline series. However, several important issues should be clarified and further investigated before inclusion can be warranted. Objectives To report the trends of ox. terpenes allergy in patients with dermatitis, features of the patch test reactions, and clinical characteristics of the patients. Methods A retrospective analysis of 5773 patients was performed. All patients were patch tested with baseline series, individual ingredients of fragrance mix I and II, ox. linalool, and ox. limonene from 2013 to 2020. Results The prevalence rates of contact allergy to ox. linalool and ox. limonene were 7.0% and 5.1%, respectively. Significantly increasing trends of contact allergy were observed. More than 95% of contact allergy cases were identified on Day 3/4. Patients with contact allergy to ox. linalool and ox. limonene were significantly younger than those with contact allergy to other fragrances and were predominantly female. Strong reactions were associated with older age and multiple fragrance allergies. Conclusions Contact allergy to ox. linalool and ox. limonene is becoming increasingly important, and findings show intriguing features. More studies concerning the clinical relevance before recommending these substances for screening are required.
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