Learn about mouth ulcer symptoms and treatments. Mouth ulcers are also a possible symptom of a viral infection that mainly affects young children, called.
Mouth ulcers aren't contagious but may be triggered by minor dental emotional stress or lack of sleep; bacterial, viral, or fungal infections.
Mouth ulcers are common and should clear up on their own within a week or 2. prescribe stronger medication to treat severe, recurrent or infected mouth ulcers. Mouth ulcers are not contagious and should not be confused with cold sores.