<s>[INST] I am male , 25 working as a software engineer in Hyderabad. Something like mouth ulcers have devoloped all across my mouth since last four days. I remember eating out the night before i devoloped this problem. Right now the ulcer seems to be in inner cheeks and same problem is with toungue. The palatal seems to be distressed too. There is a sharp burning sensation if i eat something spicy. I have heard this can happen with vitamin deficiency also. Please let me know if you need more details. Regards [/INST] hi.there r several cause of mouth ulcers.in working professionals ulcers r due to stress related problems.other cause may be vitamin deficiency,constipation, herpes infection, chronic irritation.take adequate rest, use multivitamins and use topical ointment containing antiseptic,anaesthetic and analgesic property.wish u good health </s>