Yin deficiency and internal heat are generally regulated by nourishing Yin and clearing heat, whereas Salvia miltiorrhiza has the effects of promoting blood circulation, eliminating blood stasis, promoting menstruation, relieving pain, clearing the heart and removing vexation, etc. Therefore, Salvia miltiorrhiza is not a regular medicine for treating Yin deficiency and internal heat. Salvia miltiorrhiza is the dried root and rhizome of Salvia miltiorrhiza, which has the effects of promoting blood circulation, removing blood stasis, clearing menstruation, relieving pain, clearing the heart and removing vexation, and cooling the blood to eliminate carbuncles (eliminating carbuncles and swellings by cooling the blood). Salvia miltiorrhiza can be used to treat or improve chest paralysis (stuffy pain in the chest), heart pain, epigastric (abdominal) dystocia (pain in the area of coeruleus and ribs), obstruction in the abdomen (tangible or intangible lumps appearing in the abdomen, with a feeling of distension and pain), paralysis by heat (often manifested as burning, pain, redness and swelling of the joints and muscles), pain, restlessness and sleeplessness, and menstrual irregularities. Salvia miltiorrhiza should not be used with veratrum, the adverse effects of which are not known. Because Salvia miltiorrhiza does not have the effect of nourishing yin and clearing heat, Salvia miltiorrhiza is generally not used to treat yin deficiency and internal heat. Yin deficiency and internal heat are often regulated with herbs such as Dibaopi, Yin Chaihu and Artemisia annua. If symptoms of yin deficiency and internal heat such as redness of the face, redness of the eyes, dryness of the throat and soreness of the throat, distress, and excessive dreaming occur, one should consult a doctor in time, and use Chinese medicines under the doctor’s guidance of diagnosis to avoid inappropriate use of medicines.