An ulcer.
Open sores that occur inside the stomach lining are called ulcers. Having these ulcers frequently is referred to as open sore stomach.
Ulcer
an ulcer
There are a number of reasons why you may have sore skin on your stomach and back. You may be having an allergic reaction for example.
Possibly diverticulitis. See a doctor.
Usnea is used to treat abscesses, colds, cough, cystitis, fungal infections (such as athletes foot or ring-worm), gastrointestinal (stomach and intestine) irritations, influenza, sore throats (including strep throat), respiratory infections
Pregnancy.
I really don't ask someone else
Canker sore in Filipino is called "singaw." It is a small, shallow ulcer that can appear inside the mouth on the gums, cheeks, or lips. Singaw can be painful and may last for about a week.
Gastric Ulcer
Hi Its canker sore not cancore sore. Well its a type of mouth ulcer and its main reason is acidity in stomach. Its white looking and cause pain in the area of mouth where it appear.
Go and see the doctor