The reason why young children are prone to recurring colds is mainly attributed to the decline in their own resistance and the imperfect development of children’s respiratory tract structure, in addition to the current climate changes and the increased opportunities for young children and outside contact, prone to cross-infection. Although the cold has a certain impact on young children, the occurrence of the cold itself has created new resistance in young children, so as parents should look at the problem dialectically, as young children grow older, the body’s immune function gradually improved, recurrent colds will gradually be alleviated. To prevent and treat recurrent respiratory tract infections in children, attention should be paid to the physical exercise of the child and good cold tolerance training. Try to train your child not to dress too thickly, and cultivate the habit of sunbathing, air bath and warm water bath. You can enhance your child’s physical fitness through outdoor activities. Nutritional intake should be balanced, drink more water, pay attention to eat more milk, meat, eggs, fruits, vegetables, etc., to correct children’s poor habits such as partial food in a timely manner. The medication should be used in the full amount as prescribed by the doctor. If necessary, determine the level of trace elements and immune indicators in the body, and if there is a deficiency of trace elements, carry out targeted supplementation. If there is an immune function deficiency, treat accordingly.