The general symptoms of burning mouth syndrome include abnormal tongue sensation, pain, and oral mucosal abnormalities. 1. Abnormal tongue: generally red tongue, yellow, thick and rough tongue, cracks on the tongue, accompanied by heavier breath in the mouth. 2. Pain: mostly occurring at the base of the tongue, or even the whole mouth, the tongue will feel like burning or like the feeling of being scalded when drinking boiled water, and it can also be manifested as numbness and so on. 3. Oral mucosal abnormalities: patients will be accompanied by oral mucosal epithelial congestion, redness, localized edema, ulcers, vesicles and so on. Patients should pay attention to less spicy and stimulating diet, eat more food with high vitamin content, and maintain a good work and rest. Burning mouth syndrome should be timely to the hospital for appropriate examination, clear cause, under the guidance of the doctor for appropriate treatment.