Recurring mouth ulcers like this, especially with your reflux history, often come from a
vitamin B12, iron or folate shortfall, or from reflux itself irritating the inner mouth lining. Stress and minor injury from brushing or food can also trigger them. The wider area affected this time points to a bigger flare than your usual single ulcer.
Next Steps
Since this episode has run past your usual week and covers more area, get a basic blood test for
B12, iron and folate, and keep up your reflux treatment. Rinsing with warm salt water a few times a day usually speeds healing.
Health Tips
See a physician or dentist if it isn't healing by 3 weeks, keeps spreading, or you notice trouble swallowing or bleeding.