Hello Doctor I am male 35 from India currently staying

Patient: Hello Doctor. I am male 35 from India currently staying at Malaysia.There is a black spot developing on right side of my tongue and besides that there is a which spot looks like a wound is also developing . Its creating a little discomfort that side in the mouth. I am feeling the similar sensation like a burn in tongue at that spot.Please suggest if its something serious ?ThanksBidhubhusan Mohapatra

Doctor: