This document discusses stomatitis disease, an inflammation and sore of the mouth. It causes pain, bleeding, and infection and can severely impact speech, eating, and quality of life. There are three main types: canker sores, cold sores, and herpes stomatitis. Causes include bacteria, viruses, nutritional deficiencies, hormonal changes, and weak immune systems. Signs include blisters, swelling, pain, and difficulty eating or drinking. Treatment focuses on oral hygiene, identifying and treating the underlying cause, antiviral medications, pain relievers, and nutritional support. Nursing care aims to promote comfort, proper nutrition, oral hygiene and infection prevention.