Friday, March 03, 2006
ROCHESTER, Minn. A new Mayo Clinic study reveals the most common causes of allergic contact dermatitis, a skin inflammation resulting in swollen, reddened and itchy skin due to direct contact with an allergen. Topping the list were:
*Nickel (nickel sulfate hexahydrate) metal frequently encountered in jewelry and clasps or buttons on clothing
*Gold (gold sodium thiosulfate) precious metal often found in jewelry
*Balsam of Peru (myroxylon pereirae) a fragrance used in perfumes and skin lotions, derived from tree resin
*Thimerosal a mercury compound used in local antiseptics and in vaccines
*Neomycin sulfate a topical antibiotic common in first aid creams and ointments, also found occasionally in cosmetics, deodorant, soap and pet food
*Fragrance mix a group of the eight most common fragrance allergens found in foods, cosmetic products, insecticides, antiseptics, soaps, perfumes and dental products
*Formaldehyde a preservative with multiple uses, e.g., in paper products, paints, medications, household cleaners, cosmetic products and fabric finishes
*Cobalt chloride metal found in medical products; hair dye; antiperspirant; objects plated in metal such as snaps, buttons or tools; and in cobalt blue pigment
*Bacitracin a topical antibiotic
*Quaternium 15 preservative found in cosmetic products such as self-tanners, shampoo, nail polish and sunscreen or in industrial products such as polishes, paints and waxes