Q. My oldest son used to get canker sores a lot when he got a cold. Then my mother-in-law gave us the ultimate cure that works overnight.
Swish cultured buttermilk in the mouth and hold it there for about a minute before spitting it out. We don’t know why it works, but it does. The buttermilk also heals a sore mouth from a new toothbrush or an abrasion from crispy foods.
A. You are not the first to report that buttermilk can help soothe canker sores (aphthous ulcers). It is certainly a simple, safe and inexpensive remedy.