There are different varieties of ulcers and they all have different causes. I understand that you are suffering from recurrent mouth ulcers on your tongue. Bcomplex alone cannot solve problems. You need specific treatment which can be only rendered after a proper diagnosis and treatment plan by a specialist in Oral Medicine Diagnosis. You will have to consult him. Or you may even Practo consult your problems.

Hello.  If you are vit.B12 deficient then go for B 12 injection 5 injection at weekly intervals.  Please take appropriate sleep and take little stress as these factors may cause ulcers.  Avoid spicy food. Apply hexigel m Forte gel.  Drink lot of lemon juice and other fruit juice which are full of vitamin C help in healing of ulcer.

Hello mam, do betadine gargles twice a day , apply kenacort ointment twice a day for 10 days ,avoid spicy food and don't use mouthwash until ulcers heal.