TSS is a serious and potentially fatal illness caused by toxin producing strains of staphylococcus aureus bacterium. It has been linked to the high absorbency and prolonged use of tampons. Although the occurrence is rare, we prefer to remain cautious and recommend the following to reduce your risk:
Please note that symptoms of TSS often resemble flu symptoms and can include: Sudden high fever, diarrhoea, vomiting, fainting or rash like a sun burn during your period or shortly after. If you experience any of the above symptoms, contact your doctor immediately.
For more info please check: http://www.toxicshock.com