Allergic contact dermatitis to Aloe vera

Authors: Ferreira, Márcia; Teixeira, Marta; Silva, Elvira; Selores, Manuela

Source: Contact Dermatitis, Volume 57, Number 4, October 2007 , pp. 278-279(2)

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Abstract:

We present the case of a 72-year-old woman observed for dermatitis on the legs followed by apperance of erythema on the eyelids. She had a past history of peripheral venous insufficiency and had been using self home-made Aloe vera juice over the legs for relief from pain. Patch tests showed positive reactions to the leaf of Aloe, the macerated Aloe jelly, and nickel sulfate. Although most manufacturers process Aloe products avoiding its irritant extracts, and probably as a consequence reports of allergic reactions are rare, one must remember that the growing popularity on the use of Aloe products may stimulate its use `as is' by the patients. Furthermore, it is important to specifically ask patients about the use of these products, because they consider it as innocuous and thus would not spontaneously provide such information.

Keywords: allergic contact dermatitis; Aloe vera; medicinal plants; sensitization

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1600-0536.2007.01118.x

Affiliations: 1: Department of Dermatology, Hospital Geral de Santo António, Porto, Portugal

Publication date: 2007-10-01