Ulcers can be caused because of eating habits. As well as stress. Since its been only two days, let's observe it's progress. But start off with multivitamin tablets for the time being. For a course of ten days. Then stop eating spicy food. And if u have any tobacco habits, quit!!
Next Steps
stop such food. take multivitamin tablets. observe for ten days. if it's not come down then visit a dentist nearby.
Health Tips
all the best