Tom, I,m not sure what you recommend would be effective
I wouldn't advise using Miracle-Mineral-Supplement for a minor problem at all on children or adults
that's why I am suggesting alternatives. I didn't see you suggest anything to this woman though and if you read all my replies to her you will see I didn't encourage her to use Miracle-Mineral-Supplement the way the some here think I did.
Telling people not to use Miracle-Mineral-Supplement at all will not work, thats why most here are banned from the support forum, helping them use it safer but effectively is better in my opinion.
A mouthwash may be good for bad breath, teeth or gum disease but that's about it and you may be better off with something like oil pulling or tea tree oil for that
then theres no need for nasty chemicals is there?