What should be done about a child developing mouth ulcers after the age of two?

When children over the age of two develop mouth ulcers, parents can take the following measures to help relieve the child's discomfort and promote healing: 1. Oral hygiene: Ensure the child rinses their mouth with warm water after meals to remove food debris and prevent infection of the ulcerated area. 2. Dietary adjustment: Advise the child to eat bland foods and consume more vegetables and fruits rich in vitamins, such as tomatoes and apples. At the same time, avoid oily, spicy, and irritating foods to reduce irritation to the oral mucosa. 3. Medication: If the ulcer symptoms are severe, topical medications such as oral ulcer powder or Bingbor powder may be used under a doctor's guidance to promote healing. If ulcers recur frequently or symptoms persist, oral medications such as zinc gluconate oral solution or vitamin B2 tablets may also be considered. 4. Dental examination: If teeth near the ulcer are overly sharp, promptly take the child to the hospital for dental smoothing to avoid further damage to the oral mucosa. These measures can effectively alleviate the child's symptoms of mouth ulcers and promote faster healing.