My son is 16 yrswith no health issues,except acne n pimples problem past 1 yr.recently consulted dermatologist n on medication for month. This ulcer in his mouth is became a problem past 2 yrs, specially after coming to Blr from UP state.red,painful sores comes in every month n goes with only home remedies n smyle gel.He eats spicy n nn veg food both.v rare junk foods in college no bad habits otherwise.stay in home mostly.no other tooth or gums or throat pain problems.no bleeding gums or excess sweat issues problem.Bding a busy mom i hardly noticed,thinking that bcoz of heat n all.never consulted any1 for this.pls advice me what to do.it would be appreciated highly.thanx