Hi mam...
The above mentioned condition may be ulcer..
Causes of ulcer:
** stress and anxiety
**
vitamin B 12 deficiency
** Iron deficiency anemia
** viral infections
** Genetic cause
** Gastric disturbance (GERD)
**stomach ulcers
Next Steps
kindly visit nearby dentist to rule out cause and management
Health Tips
If the mouth ulcer is due to Gastric disturbance then you are adviced to visit Gastroenterologists...