Although delusions might be a symptom of more common disorders, such as schizophrenia, delusional disorder itself is rather rare. Delusional disorder most often occurs in middle to late life and is slightly more common in women than in men.
Canker Sores. Canker sores are ulcers that usually appear on the base of your gums, tongue, the roof of your mouth and the inner surface of your lips and cheeks. Canker sores start as painful, red bumps, then develop into open ulcers with a yellow or white middle. The areas around canker sores are bright red.
Inside of mouth and gums look red, shiny, or swollen. Small ulcers or sores in mouth, on gums, or on or under tongue. A white or yellow film in the mouth or on the tongue. Blood in the mouth. Soft, whitish patches or pus in the mouth. Increased mucus in the mouth. Soreness or pain in the mouth or throat.