Is to reduce the virtual fire. Has the effects of nourishing yin and tonifying kidney, clearing away heat and dampness, caring skin and refreshing. However, it is not suitable for those with cold nature, weak spleen and stomach, loss of appetite and loose stool. Tortoise shell has the function of exciting uterus, which may lead to abortion and is not suitable for pregnant women. Therefore, as a medicine, Guiling Ointment should be stopped immediately if people who eat it have symptoms such as abdominal pain, loss of appetite and diarrhea.