It is possible to eat longan for colds and coughs. Cough is a common clinical condition, mainly caused by bronchitis and upper respiratory tract infection, and eating longan does not affect it. Cough can also be treated by taking oral cough syrup. The first thing to distinguish about cough is the nature of the cough, whether it is a dry or wet cough. A dry cough is a dry cough, which refers to the absence of phlegm and very little phlegm, as opposed to a wet cough, which is a wet cough with phlegm and a cough accompanied by a large amount of phlegm. There are differences in the treatment of these two types of coughs. Whatever the cough, you need to drink a lot of water. Drinking water helps your metabolism, especially in autumn when the climate is dry, and drinking water helps moisten your respiratory tract. However, do not drink cold water or water that is too hot, as both have an irritating effect on the respiratory tract. Diet should be light, like fried, spicy, stimulating, must be avoided, fish, shrimp, seafood are high protein content also do not eat.