A mouth ulcer followed by a white dot may be associated with an inflammatory infection. Mouth ulcers are usually associated with low immunity and vitamin deficiencies. Mouth ulcers are self-healing and usually heal after 7 to 10 days. Mouth ulcers after a white dot may be related to inflammatory infections, such as bacterial or viral infections, in the mouth ulcers after self-healing will appear a white dot, this time under the guidance of the physician to use non-steroidal anti-inflammatory drugs, such as aspirin, celecoxib, etc. for treatment. In addition, in daily life, to balance the diet, eat more fresh fruits and vegetables, in order to reduce the occurrence of ulcers. If the mouth ulcers after the rise of the appearance of white dots and long-term can not be cured, it is recommended to seek timely medical attention. The above drugs need to be standardized and rationally used under the guidance of professional physicians and pharmacists.