Most mouth ulcers are caused by viral infection or by injury from sharp teeth, ill-fitting dentures, hard food or abrasions from a toothbrush. Sometimes mouth ulcers can be a sign of disease elsewhere in the body such as some forms of inflammatory bowel disease or systemic lupus erythematosus.
Viruses such as the Herpes virus can cause painful clusters of ulcers often towards the back of the mouth. If there is a history of recurrent Herpes infections it may be necessary to examine the immune system. There is a condition called Hand Foot and Mouth disease where ulcers appear in the mouth and itchy spots on the palms and soles of the feet.
Treatment for mouth ulcers depends on severity and cause, but relief can be gained from the use of steroid gel or lozenge.
Additional Medical Conditions: