There is no such thing as the best medication for your child’s tongue ulcer. Tongue ulcers in children are often caused by trauma, herpes simplex virus infection, vitamin deficiency, etc. General treatment and medication can be given according to the cause of the ulcers. 1. Trauma: children often bite their tongues by mistake when eating or playing, which often causes ulcers. At this time, there is no need for special treatment, and attention should be paid to children’s oral hygiene and to avoid re-traumatization. 2. Herpes simplex virus infection: can cause tongue or mouth ulcers, can be sprayed under the guidance of the doctor local watermelon cream or tin and other drugs, has a certain anti-inflammatory effect, but note that the use of the above drugs are contraindicated for those who are allergic to the drug. Should also pay attention to keep the mouth clean, drink more water, avoid spicy stimulating food intake. 3. Vitamin deficiency: children picky eaters, partiality and other bad eating habits may lead to vitamin deficiency, thus causing tongue ulcers. The child should be urged to improve his dietary habits, eat more fresh vegetables and fruits, and maintain a balanced nutrition, which is conducive to the recovery and prevention of ulcers. If the child shows obvious symptoms such as irritability, fever, refusal to eat and difficulty in swallowing, it is recommended to go to the hospital in time to avoid delaying the condition.