Deer blood is the blood extracted from the heart of a slaughtered sika deer. It was first used in Qingbo Magazine in the Song Dynasty. In the Compendium of Materia Medica written by Li Shizhen in the Ming Dynasty, the medical effects of deer blood blood were recorded in detail: "mainly impotence, tonifying deficiency, stopping lumbar pain, nosebleed bleed, fall injury, rabies injury, and drinking wine to treat lung impotence and vomiting blood, and bringing down the collapse of the body. People who are about to die of Qi pain can be cured by drinking. Great tonifying deficiency, benefiting blood, resolving acne poison, drug poison ". Deer pain-work can cure heart palpitation, insomnia, forgetfulness, fall injury and anti-aging. Used in the treatment of rheumatism and rheumatoid disease, the effect is remarkable.