Oral inflammation is highly prevalent in the population and almost everyone has suffered from it. Understanding the symptoms, causes and treatment of oral inflammation can help maintain our oral health so that it does not affect our daily life and work. The typical clinical manifestation of oral inflammation is the appearance of oral ulcers on the cheeks, tongue, palate, gums and other parts of the patient’s mouth, and in severe cases, even with erosion, and the ulcers are red, swollen and painful. There are many clinical causes of inflammation of the oral cavity. EBV infection is the most common clinical cause of oral inflammation. When the patient’s immune system is low, the virus is very active in the patient’s body and the symptoms of oral inflammation can be very serious. Internal imbalance is also the cause of oral inflammation. In today’s society, the pressure of survival has increased, people have long-term mental tension, often stay up late resulting in imbalance of hormone levels in the body, the symptoms of oral inflammation. The most important clinical treatment is medication and lifestyle modification to help relieve the condition of oral inflammation. The use of Yunnan Baiyao, Gentamicin, Vitamin C and other drugs can help relieve the oral fire. Secondly, the patient must develop a regular routine during the fire and eat more fresh fruits and vegetables, which can help relieve the fire and reduce the patient’s pain. Once suffering from oral inflammation do not worry too much, actively identify the causes of oral inflammation and actively receive treatment, can help maintain the normal oral physiological function of patients.