According to the Pharmacopoeia, the maximum dosage of Cornus officinalis is 30 grams, but the dosage varies according to the patient’s condition and the doctor’s habit of using the drug, so the exact dosage should follow the doctor’s instructions. According to the Pharmacopoeia, Cornus officinalis is generally used 6-12 grams, but for critically ill patients for emergency medicine can be used 20-30 grams, so the maximum use of Cornus officinalis is 30 grams. But clinically the patient’s condition and the doctor’s habit of using different drugs, the maximum dosage of Cornus officinalis is also different, can not be generalized, should follow the doctor’s instructions. Cornus officinalis has the function of tonifying the liver and kidney, astringent and fixing the loss of hair, and is suitable for patients with spermatorrhea and seminal emission caused by deficiency of the liver and kidney (weak function of the liver and kidney), disintegration and leakage of menstruation (excessive menstruation or more than a few drops of menstruation), lumbar and knee pains, impotence, tinnitus and vertigo, and so on. However, it should not be used by people with painful urinary dribbling caused by dampness and heat. Cornus officinalis should be used under the guidance of a professional Chinese medicine practitioner, and should not be used blindly in large doses.