TY - JOUR T1 - Dermatological powder as hidden cause of occupational allergy due to casein: a case report JF - Occupational and Environmental Medicine JO - Occup Environ Med SP - 609 LP - 610 DO - 10.1136/oem.60.8.609 VL - 60 IS - 8 AU - P Bonadonna AU - G Senna AU - G Passalacqua Y1 - 2003/08/01 UR - http://oem.bmj.com/content/60/8/609.abstract N2 - We report a case of occupational asthma due to hidden casein, contained in a dermatological powder. A 44 year old nurse reported the recent onset of rhinitis and asthma, clearly related to the work environment. Skin tests for food allergens revealed a positivity for milk proteins. The source of dispersed milk proteins in the work environment was found to be a dermatological formulation of an inert refreshing powder, used to treat excoriated areas in the elderly. Skin prick tests confirmed the positivity to casein and to the commercial product. ER -