Fresh longan can be eaten for colds, but it needs to be consumed in moderation. Patients with colds, often caused by upper respiratory tract infections, are better served by eating light, nutritious foods after the infection is inflamed. For very sweet and hot fruits, spicy and stimulating type is not recommended for patients, and if consumed should be used in small amounts. Fresh longan contains a lot of glucose, sucrose, etc. It is a fruit with high sugar content, and also has the function of improving immunity, which has both advantages and disadvantages for the recovery of cold patients. Therefore, patients can eat it during the cold, but should not eat too much. For the cold caused by wind and cold, the hot nature of longan has a very good effect, but if the effect of viral cold is not obvious.