The following drugs are used to improve children’s immunity: 1. Western drugs, such as transfer factor oral solution, spleen aminopeptide oral lyophilized powder and pidomod oral solution, are often used to improve children’s respiratory immunity, and the effect is very good. 2. Chinese medicines, such as Huangqi oral solution and Yu Ping Feng San, can be used to regulate children’s physical condition, and the adjustment of the spleen and stomach function is very good. 3, in the life of the trace elements of oral and vitamin D supplementation, the immunity of children is also beneficial, such as zinc gluconate oral solution, calcium gluconate oral solution, iron-containing drugs such as ferrous sulfate oral solution and vitamin D supplementation, these on the improvement of the immune function of children have auxiliary effect.