Hi sir....
Burning sensation of tongue is due to many cause....it may be due to stress,anxiety, depression,dry mouth from certain medications,oral yeast like fungal infection(candidiasis),
vitamin deficiency,allergic reaction to cetain food, sometimes gastric disturbance also cause burning tongue....
Next Steps
Kindly visit nearby dentist to rule out the cause and furthur treatment
Health Tips
Avoid self medication and intake of hot and spicy food...consume plenty of water...