'Infected or injured skin
Damaged skin or sores caused by injury or disease, e.g. boils and septic cuts,
can become infected with bacteria such as Staphylococcus aureus, which can
cause food poisoning. Symptoms of infection include scaling, weeping or
discharge from lesions. It is usually acceptable to continue working with food
as long as the infected area is completely covered, e.g. by use of a
distinctively coloured, waterproof dressing. If an infected lesion cannot be
effectively covered then the person should be excluded from any work likely to
lead to the contamination of food. Lesions that may not be possible to cover
adequately would include weeping lesions of the eyes, ears, mouth and gums.
Best Practice
Covering any dressings on hands with a rubber (or a similar material) glove.'
http://www.food.gov.uk/sites/default...kguide09v3.pdf