1. First, adjust your diet. Parents can give their children foods with high zinc content, such as beef, egg yolk and oysters. Because these foods contain high zinc content, they have obvious therapeutic effect of zinc supplementation for children to eat regularly, and because diet therapy is safe and easy for children to accept, so this is the first choice for treatment.

2. Secondly, supplement zinc for children. For example, give children zinc gluconate oral liquid, licorice zinc granules and so on. These zinc supplements are relatively safe and have few side effects, and can be given to children for a long time. Generally speaking, the course of zinc supplementation for children is often more than 1-3 months, and it is necessary to check trace elements for children regularly. If the child's zinc is within the normal range, the drug can be stopped after 1-2 weeks.