Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain a painful ulcer over the tip of tongue seems to be due to apthous ulcer that can be due to common causes like deficiency of iron and
vitamin B12, traumatic injury to the tongue tip, stress etc..
White film over the tongue is most commonly due to oral yeast infection known as
Oral Thrush..
Burnt feeling is due to inflammation of the tongue secondary to infection leading to
Glossitis..
I would suggest you to consult an Oral Physician and get evaluated and a thorough clinical evaluation and investigations like microscopic examination of the scraping from the tongue can help in diagnosis and treatment can be planned accordingly..
As of now you can start taking a
multivitamin tablet daily..
Gargle with a numbing mouthwash containing Lignocaine..
You can also do warm saline gargles..
Avoid spicy food and drink plenty of water..
In case if thrush is diagnosed you can be advised antifungal medication like Nystatin mouthwash and
clotrimazole lozenges along with ample of probiotics like Yoghurt in diet.
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.