Dear Sir,
According to your age there is chances that the ulcer kind of lesion and the radiating pain over multiple tooth in an area can be due to Wisdom tooth eruption orelse if you had any kind of trauma externally or internally accidentally it can be due to that also for meanwhile you can use the medication I suggest and if you could send photos of the same in personal chat it would good that I can have a clinical view of your condition.
Get well soon.
Next Steps
Share me the photos so that I can have a clinical view of your issue or consult a Doctor as soon as possible
Health Tips
Rexidin M Forte Gel,
Tab Ketorol DT 10mg (0-1-0) 3days (3) in case of tooth ache,
Follow proper mouth rinsing with salt warm water 4-5 times a day,
Avoid bad habits.