Giant Hogweed Dermatitis

Abstract

Phyto-photo-dermatitis due to contact with the giant hogweed (Heracleum mantegazzianum) is described in 13 patients. The plant, which is illustrated, is spreading rapidly in the United Kingdom, and few people have been aware of its effect on the skin. The problem was brought to the notice of the public and medical profession by carefully organised publicity, as it was felt that education provided the most effective means of prevention of the dermatitis. The only recommended form of herbicidal control is the use of 2,4-D acid in oil emulsion, or a commercial TBA+MCPA mixture.