Flexural allergic contact dermatitis to benzalkonium chloride in antiseptic bath oil

Authors: Hann, S.; Hughes, T.M.; Stone, N.M.

Source: British Journal of Dermatology, Volume 157, Number 4, October 2007 , pp. 795-798(4)

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Abstract:

Summary

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.

Keywords: allergic contact dermatitis; bath additives; benzalkonium chloride; flexural eczema; irritant contact dermatitis

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1365-2133.2007.08134.x

Publication date: 2007-10-01