It’s best not to eat pickled fish when you have a cold, because most people have a decreased appetite and reduced digestive function when they have a cold. Sauerkraut is a heavy food, and if it is spicy, it may irritate the throat area and cause the sore throat to worsen. When you have a cold, you should pay attention to a light diet, eat easy-to-digest food, and avoid spicy, stimulating, fried, greasy, heavy-flavored food. Patients should drink more warm boiled water, and can eat more fresh vegetables and fruits to supplement vitamin C, which is favorable to the recovery of the disease. If you want to eat fish, it is best to make steamed fish or fish soup, which will be lighter and easier to digest. And in addition to paying attention to diet, colds should also pay attention to more rest.