In the UK, some companies are testing mouthwash that contains a natural antibacterial agent.
This is in addition to a traditional antibacterial, such as sodium bicarbonate, to reduce the risk of bacterial infections.
Dr Caroline Williams, head of the public health department at the British Medical Association, said that “there are still areas of research that we don’t yet know how to address” such as “the potential risk of tooth decay”.
Dr Williams said there were also potential concerns over the risk for people who are allergic to mouthwash or may be sensitive to it.
Dr Williams also said that some of the mouthwash sold in supermarkets was not good for the environment.
The UK Food Standards Agency said the agency would be examining the issue, but said the UK had seen no evidence of increased cases of dental decay from this product.
The product has also been blamed for other illnesses including a case of a “tour de force” of cases in which someone died after drinking mouthwash.
Dr Robin Prentice, from the UK Centre for Food Safety, said the situation was concerning because consumers are being misled about the safety of mouthwash, and it was “extremely important” that consumers knew the safety information for mouthwash before purchasing it.
He said there was “no evidence that this particular mouthwash contains any of the antibacterial agents listed in the World Health Organisation’s guidelines”.
The WHO’s guidelines for mouthwashes say: “Use mouthwash only in areas where there are no other human health risks.”
Dr Williams, who is a microbiologist at the University of Exeter, said it was vital that consumers had access to the correct information before they bought products.
“The more we have to make consumers aware of the risks, the better,” she said.
She also said the WHO’s advice on the safe use of antibacterial products was “essential”.
“People are still using mouthwash on a regular basis,” she added.
“I hope people will start to look at it as a normal part of their everyday routine and just assume that it’s good.”
Consumers should be aware of some of these potential risks before purchasing mouthwash: it is possible that the products in question contain chemicals that are not labelled on the packaging.
This can cause them to react with other ingredients in the same product, including ingredients in hand sanitizer.
If the product contains a chemical that can cause allergic reactions, consumers should wash their hands after using it.
If you are concerned about the health of a child or elderly person, parents should inform the retailer that they are purchasing the product and that they should contact their local health authority for advice.