When a child has a hematological disease, parents always have a lot to worry about, including whether they can be hospitalized on time, whether they can take their medication on time and have normal liver and blood work, including the results of various re-examinations of bone and lumbar puncture, etc. These are certainly important, but I personally feel that we must pay attention to promoting the child’s immune system back to normal while chemotherapy, otherwise the cluster of bad cells will really not know when to rekindle. The immune system is an amazing system. The immune system is a very amazing place, there are many innate factors, but there are also many acquired regulatory direction, the following are some personal views to share with you. Zhang Aijun, Department of Pediatric Internal Medicine, Qilu Hospital, Shandong University I. A happy mood can release many beneficial cytokines and promote the normal work of the immune system, just as many terminally ill people put down all their burdens and go on a trip, and come back to find that the tumor has inexplicably disappeared, so the efficacy of many diseases for adults is worse than that for children. But the fact is that many parents feel that their children are sick, they have to take care of them very carefully, they can’t go out to play, they can’t contact other children, they are careful every day, adults always have a nervous and depressed expression, it will affect the children, in a grass-roots environment, they can’t do this or that, it is difficult for children to have a happy mood, older children can easily feel the crisis from the performance of their parents, children will Do not understand why parents always do not smile, but also become quiet and often panic. It is not realistic to ask a child to be strong if the adult cannot be strong and calm, so the parent does have to take on more of the burden, and depression can happen to both the adult and the child, and is the easiest thing to overlook during the long healing process. Organizing the child’s life as normally as possible, including school including friendships, can help enrich the child, distract from the pain, and make the child as happy as possible. (To be continued)