The body has a heavy internal fire, the performance mainly has the following points: 1, emotional changes, there will be a very serious sense of anxiety or easy to get angry, look at no one and other related symptoms; 2, the patient will feel an abnormal taste inside the mouth, bitter mouth, bad breath or sour mouth, especially the most obvious in the morning; 3, so that patients have dry mouth, dry mouth, dry throat, dry eyes, dry tongue, mouth ulcers and a series of related Symptoms; 4. Heavy internal fire in the body will be manifested by the appearance of herpes in the mouth and lips, and dry stools, which are more common symptoms of heavy fire, and can be clinically treated by drugs under the guidance of a doctor with reasonable application and reasonable treatment.