<s>[INST] Hi doctor, Before five weeks, I had a sore developed on my tongue. It was white and painless. I consulted an ENT specialist, and he gave me some medicines for cold sores. After that, it turned red and large with a slight crack on the tongue. Now, it has healed, and I have another sore developed over it. It is small and painless. It has white circles and a red center. What could it be? Please suggest. [/INST] Hi. Please send a picture of the lesion so that I can guide you further and I can provide you with a diagnosis. </s>