On the back side of my tongue there are some small painless bump from last 8 month.I have visited many doctor but they said its because of
vitamin deficiency.So i am taking vitamin from last 5-6 month but i havnt got cured.I have attached a picture of similar like condition of my tongue.So is it harmful or harmless.What is the reason of bump .How to get cured .Kindly advice me some medicine.