Conflicts of interest None declared.
Flexural allergic contact dermatitis to benzalkonium chloride in antiseptic bath oil
Article first published online: 21 AUG 2007
British Journal of Dermatology
Volume 157, Issue 4, pages 795–798, October 2007
How to Cite
Hann, S., Hughes, T.M. and Stone, N.M. (2007), Flexural allergic contact dermatitis to benzalkonium chloride in antiseptic bath oil. British Journal of Dermatology, 157: 795–798. doi: 10.1111/j.1365-2133.2007.08134.x
- Issue published online: 21 AUG 2007
- Article first published online: 21 AUG 2007
- Accepted for publication 28 May 2007
- allergic contact dermatitis;
- bath additives;
- benzalkonium chloride;
- flexural eczema;
- irritant contact dermatitis
Benzalkonium chloride (BAK) is an acknowledged irritant but has also been identified as a cause of allergic contact dermatitis. The antiseptic bath emollient Oilatum® Plus (Stiefel, High Wycombe, U.K.) contains a relatively high concentration of 6% BAK. We describe six patients who presented with flexural eczema, particularly involving the anogenital area, who had a history of using Oilatum® Plus. Patch testing showed all six to have a type 4 allergy to BAK as well as other allergens. Avoidance of Oilatum® Plus led to a resolution of the flexural eczema in each case.