Dried cinnamon generally refers to longan meat, the contraindications for drinking it in water have not been clarified. This product has the effects of tonifying the heart and spleen (tonifying the heart and spleen with nourishing drugs), nourishing the blood and tranquilizing the mind (stabilizing the mind and soothing the emotions by nourishing the blood), and needs to be used in accordance with the doctor’s prescription. The adverse reactions and contraindications of Longan Pork are not clear. However, Longan Pork is warm in nature and should be taken with caution by those who have phlegm-fire in the body, those who are full of dampness and stagnation in the middle of the body, those who have a distended and stuffy stomach (feeling distended and uncomfortable in the abdomen), those who have nausea and vomiting, and those who are sleepy and heavy in limbs (having no strength in the limbs and sinking of the limbs), etc.). Longan meat is used to treat deficiency of qi and blood, palpitation (rapid heartbeat, often accompanied by panic), panic, insomnia and forgetfulness, blood deficiency and atrophy. However, the therapeutic effect of this product for drinking water is limited, it is difficult to achieve the therapeutic effect, usually decoction soup for internal use, for the treatment of disease also need to be used with other herbs together. Specific medication should be used under the doctor’s diagnosis.