The causes of ulcers on the palate in children include the following conditions. First, symptoms caused by various infections. If there are viruses, bacteria and other infections in the child’s mouth, it will cause ulcers on the palate, and even ulcers on the oral mucosa and the tongue, the child can be given timely anti-infection treatment, such as the application of busulfan anti-inflammatory oral solution or cephalosporin. Secondly, the symptoms are caused by the lack of trace elements in children. If a child has zinc deficiency, it can also cause ulcers on the palate, which are chronic and have a tendency to recur, and should be treated with zinc supplementation, such as zinc glycyrrhiza granules or zinc gluconate oral solution.