Hi i have been suffering from some sort of excema i have had patch test they have reveal that i am alergic to thiomersal, quarternium, nickel and gold, i am a cleaner i always wear cotton gloves under my latex free gloves, but my dermatologist has said it must be in the cleaning products i have asked the manager to check this out with the suppliers they say not in any of their products, i am at a loss dermatologist has suggested light theraphy but until i find out what these products are in and avoid them so my hands are normal again, many thanks karen