It depends on the ingredients of the old fire soup. The older generation thinks that children are weak all day, pale and prone to illness, so they will judge that children need to supplement qi deficiency. They often cook salvia miltiorrhiza, radix Pseudostellariae and American ginseng for their children, thinking that ginseng can benefit qi and enhance resistance. But this old fire soup is not good for children, because this old fire soup has an impact on children's spleen and stomach function. But not all old fire soups can't be drunk. It depends on the ingredients. The conditioning of children is mainly the function of spleen and stomach. We suggest that children drink some soup to strengthen the spleen. After illness, children are in a state of spleen deficiency, so they can drink some soup for strengthening the spleen, but it is not recommended to drink it every day, twice a week. It is recommended to drink some soup of drugs that strengthen the spleen and stomach, such as yam, poria cocos, Euryale euryales, lentils and so on. It should be emphasized that soup should not be too nutritious. Some parents put a lot of bones, meat and so on. In the soup. They think that the cooked bowl is thick enough and nutritious, but it is not necessary.