When you have a fever, you should eat a light diet, eat more green vegetables and fruits, drink more water, and eat easily digestible food. You can drink rice porridge, millet porridge, and red bean porridge, which can supplement dietary fiber without increasing the burden on the spleen and stomach, causing bloating, diarrhea, and indigestion. If the fever is caused by summer heat, you can drink mung bean soup, which has the effect of clearing heat and quenching thirst. Avoid eating spicy, stimulating and greasy food, and avoid fish, shrimp and seafood to avoid fire and phlegm, which can cause coughing and aggravate the disease. When you have a fever, you need to drink more water and replenish vitamin C. Try to avoid going to places where there are many people to prevent cross-infection, you can take juice from fresh fruits with hot water, which can replenish vitamin C and also replenish water, which is good for the recovery of cold and fever and can prevent dehydration caused by high fever.