Contact urticaria from synthetic cassia oil and sorbic acid limited to the face.
A patient with contact urticaria with skin and respiratory symptoms was found to be sensitive to both sorbic acid and synthetic oil of cassia. The contact urticaria was only elicitable on intact skin of the face by open testing. The source of the patient's contactants was her shampoo and toothpaste.
D000328:Adult; D002366:Cassia; D003877:Dermatitis, Contact / Q000209:etiology*; D005148:Facial Dermatoses / Q000139:chemically induced*; D005231:Fatty Acids, Unsaturated / Q000009:adverse effects*; D005260:Female; D006801:Humans; D009821:Oils / Q000009:adverse effects*; D010946:Plants, Medicinal; D013011:Sorbic Acid / Q000009:adverse effects*; D014581:Urticaria / Q000139:chemically induced*
D005231:Fatty Acids, Unsaturated; D009821:Oils; D013011:Sorbic Acid