Mouthwash 'causes oral cancer' and should be pulled from supermarkets, say experts By Daily Mail Reporter 12th January 2009 There is now 'sufficient evidence' mouthwashes containing alcohol contribute to the increased risk of the disease, according to a review of the latest studies. The ethanol in mouthwash is thought to allow cancer-causing substances to permeate the lining of the mouth more easily and cause harm. Lead author Professor Michael McCullough said: 'We see people with oral cancer who have no other risk factors than the use of alcohol-containing mouthwash, so what we've done in this study is review all the...