Heat in the mouth may be a manifestation of liver fire or stomach fire. 1. Liver fire: patients with hot mouth, if caused by liver fire, are often accompanied by red eyes, rib pain, bitter mouth, jaundice, aversion to grease, fatigue, bad breath, pulse string flooding and other symptoms. 2. Stomach fire: If it is caused by stomach fire, the patient’s mouth is hot, often accompanied by fast hunger, eat more, constipation, bad breath and so on. Patients with heat in the mouth, do not eat spicy and stimulating foods, such as chili, white wine, pepper, etc., eating these foods is likely to aggravate the condition, the patient should drink more water as appropriate. Patients with heat in the mouth should actively seek medical treatment, and should use medication under the guidance of physician’s interview; patients should not use medication on their own to avoid adverse results.