Does it Heal Canker Sores?
Some people recommend using mouthwash as a treatment to alleviate the pain and discomfort.
Personally, I have not seen this to be helpful, but if you decide to try it, be sure to choose a mouthwash that does not contain SLS, as some do.
Also, it is not recommended that you use an alcohol-based mouthwash on a continual basis or as a preventive measure to lessen outbreaks.
Alcohol has been shown to “increase the penetration of DNA-damaging chemicals in the lining of the oral cavity and oropharynx”, which can lead to cancer, according to the American Cancer Society.
If, as suspected, SLS causes the sores by removing mucin (a protective lubricant) from the mouth, alcohol may increase the susceptibility to those DNA-damaging chemicals.
On the other hand, if alcohol is the ingredient that seems to help heal your sores, temporary use may not be so bad.
Mouthwashes may provide some relief, but there are better treatments available for mouth sores.