There are many different types of mouth sores than can develop around or in the mouth. Some are painful, some are unsightly and some may be a sign of something more serious. If your mouth sore does not go away
Here’s how you can avoid spreading cold sores to others:
Don’t pucker up. You can spread cold sores simply by getting up close and personal with your loved ones. … Don’t share. If you put it in your mouth, don’t share it.