European canker, caused by the fungal pathogen Neonectria ditissima, presents a significant challenge to apple production across temperate regions. The disease manifests as cankers on trunks and ... Canker sore β€” Learn about the causes, treatment and prevention of this painful mouth sore.

Understanding the Context

Canker sores, also called aphthous ulcers, are small, shallow sores that develop inside the cheeks, at the base of the gums, under the tongue or in the back of the throat. Typically, they appear red around the edges and gray in the center. Although they don't always cause discomfort, canker sores sometimes can be painful. Mayo Clinic Q and A: Canker sores often go away on their own, are not ...

Key Insights

Description Benzocaine is used to relieve pain and irritation caused by sore throat, sore mouth, or canker sores. This medicine is available without a prescription. Your doctor may have special instructions on the proper use and dose for your medical problem. Canker sores occur singly or in clusters on the inside surfaces of your cheeks or lips, on or under your tongue, at the base of your gums, or on your soft palate. They usually have a white or yellow center and a red border and can be extremely painful.

Final Thoughts

The Cool Down on MSN: Homeowner concerned after returning from vacation to find apple trees damaged: 'What is this?' Homeowner concerned after returning from vacation to find apple trees damaged: 'What is this?'