What should I do for a 5-year-old child with mouth ulcers?

When a 5-year-old child develops mouth ulcers, parents can take the following measures to help relieve discomfort and promote healing: 1. Maintain oral hygiene: Encourage the child to brush teeth in the morning and evening, and rinse the mouth after meals to keep the ulcer area clean and reduce bacterial growth. 2. Adjust diet: Offer soft, bland foods and avoid acidic, spicy, coarse, or overly hot foods that may irritate the ulcer. Increase intake of foods rich in vitamin C and B-complex vitamins to support healing. 3. Local treatment: If pain is significant or the ulcer is large, use oral sprays or mouthwashes as recommended by a doctor to alleviate pain and speed up healing. 4. Correct不良 habits: Discourage habits such as lip-biting or cheek-biting to minimize trauma to the oral mucosa. 5. Monitor and seek medical care: Closely observe the child's condition. If symptoms persist or worsen, seek medical attention promptly for professional diagnosis and treatment.