Hallo,mouth ulcers can be due to different causes ,may be due to biting the tongue ,a sharp tooth,stress,strong antibiotics,taking citirus fruits or other foods with high acidity content....for most people mouth ulcers clear within 14 days,....if you have severe pain I suggest you to use kenacort oral ointment on ulceration area thrice daily instead of metrogyl dg gel..for 5 days followed by other medication prescribed by your doctor
Next Steps
make sure to have an appointment with doctor for the follow up
Health Tips
drink plenty of water,avoid too spicy foods,apply ice cube to ulcer for temporary relif,over the counter use oral pain relivers