What should I do if a child has three or four blisters from oral ulcers?

When a child develops mouth ulcers accompanied by two or three small blisters, parents can take the following measures: 1. Oral hygiene: Gently brush teeth with a soft-bristled toothbrush at least twice daily, and use fluoride-containing mouthwash to reduce food debris and bacterial irritation to the ulcer. 2. Medication: Under medical guidance, topical medications such as oral ulcer powder, Bingbor powder, or Guilin Watermelon Frost can be applied directly to the affected area to help reduce swelling and relieve pain. Additionally, oral vitamin B complex supplements may assist in alleviating mouth ulcers. 3. Protecting oral mucosa: Use over-the-counter ointments such as compound chamomile lidocaine gel or triamcinolone acetonide oral ointment, applying them to the affected area before and after meals. This forms a protective layer that reduces friction and irritation, promoting healing. 4. Dietary adjustments: Avoid feeding the child spicy, hard, or excessively hot foods to minimize irritation to the ulcerated areas. Instead, provide more vegetables and fruits rich in vitamins to support healthy oral mucosa.