ABSTRACT
Benzophenones are the most frequent cause of sunscreen allergy. Photoallergic and nonphotoallergic reactions may occur. We present a patient with allergic contact dermatitis of the lips from benzophenone-3 in a lip balm and fragrance/flavorings.
Subject(s)
Benzophenones/adverse effects , Cheilitis/chemically induced , Dermatitis, Allergic Contact/etiology , Flavoring Agents/adverse effects , Sunscreening Agents/adverse effects , Allergens/toxicity , Cheilitis/diagnosis , Dermatitis, Allergic Contact/diagnosis , Humans , Lip , Male , Middle AgedABSTRACT
Propolis is commonly used in cosmetic and medicinal preparations because of its antiseptic, antiinflammatory, and anesthetic properties. Its therapeutic qualities have been well documented. However, 1.2 to 6.6% of patients who are patch-tested for dermatitis are sensitive to propolis. The main allergens are 3-methyl-2-butenyl caffeate and phenylethyl caffeate. Benzyl salicylate and benzyl cinnamate are less frequent sensitizers. Propolis is found in a number of "natural" products, including lip balms, cosmetics, lotions and ointments, shampoos, conditioners, and toothpastes. Dermatologists should consider patch testing with propolis in users of such remedies.