How To Use Canker sore In A Sentence

In the bowl is a teaspoon of alum, for him to dip his finger into and touch onto the canker sore in his cheek. AUGUST HEAT
He was suffering from canker sores in his mouth although he wore knot charms against them. THE SHIPPING NEWS
It is used for canker sores, mouth ulcers resulting from chemotherapy and irritation from braces or dentures.
The Chinese cure for canker sore is called Watermelon Frost From The Tips Box: App Purchases, Paragraphs, To-Do Time Limits | Lifehacker Australia
I didn't mean to, Bill, but it's like a friggin 'canker sore. I Have a Feeling this Can't Be Good News, Either

This means that you swish the medicine around in your mouth, especially around your canker sore, for a few minutes before swallowing it.
A common form of mouth ulcer, canker sores occur in women more often than in men.
Mouth injuries, such as biting the inside of your lip or even brushing too hard and damaging the delicate lining inside your mouth, also seem to bring on canker sores.
If your child's doctor prescribes a medicine that should be applied directly to the canker sore, first dry the area with a tissue.
It is useful for boils and skin ulcerations, like bedsores and canker sores.
Probably the most common is the Aphthous Ulcer otherwise known as a canker sore. Aphthous Ulcers (Canker Sores)
Once it does, the canker sore may swell and burst in about a day.
Call your doctor if your child's canker sore gets worse.
When my husband was a little boy, the doctor told his mom he had a canker sore.
He was suffering from canker sores in his mouth although he wore knot charms against them. THE SHIPPING NEWS