Crawfish can not be eaten when you have a cold, cough, because crawfish in Chinese medicine is a cold food, belongs to the seafood category, but also belong to the hair, usually not recommended for the cold, fever or accompanied by a pronounced sore throat, because the crawfish contains more specific proteins, but also easy to cause food allergies, so there is a cough and obvious cold, accompanied by sore throat patients should not take, otherwise it is easy to cause allergic reaction. In addition, eating crayfish can also lead to more phlegm, yellow phlegm and even aggravate the cough, which can also lead to inflammation of the lungs, so you should not eat seafood when you have a cold, especially cold foods such as crayfish, and you should drink more water and eat a light diet when you have a cold.