There are many reasons for children’s rashes, such as allergies, viral infections, etc. Although the causes are different, they all require a light diet, more easily digestible food as well as more vegetables and fruits. Children with rashes need to eat a light diet, eat more easily digestible food such as porridge, noodles, etc., can avoid aggravating the burden on the child’s gastrointestinal tract, causing gastrointestinal discomfort; avoid stimulating, spicy or greasy food, if the child is allergic to rashes caused by allergens, but also need to avoid re-exposure to allergens. Vegetables and fruits are rich in vitamins, which can not only give the child supplemental nutrition, but also improve the child’s resistance and enhance the child’s physical fitness, such as watermelon, oranges, tomatoes, strawberries and so on. When a child has a rash, parents must take the child to the hospital in time, after a detailed examination, under the guidance of the doctor for treatment, with dietary treatment, let the child keep a moderate amount of exercise, can promote recovery.