A7. The first indication of a mouth ulcer is a slight tingling or burning sensation in your mouth. This is then followed by the appearance of small spots or bumps which are oval in diameter and have a pale yellow centre.
Each sore will have red ring around it and will look inflamed.
You may develop a single mouth ulcer or a group of them. If you develop the herpetiform type of ulcer then you can expect as many as 20 to 30 of these ulcers.
Mouth ulcers are painful and prevent you from eating or drinking properly. Many people find that a mouth ulcer affects their ability to talk as per normal. Mouth ulcers can be accompanied by other symptoms such as fever, tiredness and swollen glands although this occurs in the more severe cases.