Hi mam...
Ulcer under tongue may be due to many cause.
1.Injury to mouth
2.eating hot and spicy food
3.
vitamin deficiencies
4.hormone problem
5.stress
6.Trauma from sharp teeth
Next Steps
Treatment:
** Avoid spicy and hot foods
** Drink plenty of water
** Regular rinse your mouth with wam salt water
**Keep your mouth clean
** Use analgesics such as paracetomol
**Use Rexidine mouth wash
**Apply antiseptic gel to ulcers.
**
Vitamin B complex tablets
Health Tips
Avoid home remedies...kindly visit dentist as soon as possible to rule out cause..