Oral fire generally refers to mouth ulcers, may be dizziness and dizziness, most often seen in yin deficiency fire exuberance (deficiency of yin and essence in the body, the emergence of excessive deficiency fire), liver fire exuberant people. Yin deficiency and fire caused by oral ulcers, the main manifestation of oral ulcers redness, swelling and pain is not too obvious, accompanied by self-conscious burning sensation, thirst, drink more water. Or accompanied by lumbar and knee soreness and weakness (the feeling of soreness and weakness in the waist and knees), impotence and premature ejaculation, dizziness, tinnitus and other symptoms. This type of mouth ulcer needs to be treated by nourishing Yin and clearing heat (nourishing Yin essence and clearing away heat), and may be treated with Zhi Bai Di Huang Wan and Da Tonic Yin Wan. Mouth ulcers caused by exuberant liver fire are characterized by severe pain in the mouth ulcers, obvious redness and swelling, impatience and irritability, dizziness, head swelling and pain, even red eyes, dry mouth and bitterness, and distension and pain in the two ribs and hypochondriacs. This type of mouth ulcers needs to be treated by clearing the liver and diarrhea (removing liver fire), and you can choose to take Gentian Diarrhea Liver Soup, Angelica Longhui Pill, and so on. If mouth ulcers appear and do not heal for a long time, seek medical advice and follow the doctor’s instructions for examination and treatment.