What could be the cause of a painful bump under the tongue with whitish-green patch?

Hello,

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As per the clinical picture provided (attachment removed to protect the patient's identity), the tongue seems to have a traumatic ulcer underneath due to teeth bite or burn due to hot food intake. Additionally, the ventral surface seems to have nutritional deficiencies (probably vitamin B complex), showing features of a geographic tongue.

1. I suggest you maintain reasonable plaque control and take a multivitamin, whichever suits you, once a day for 15 days.
2. In addition, for traumatic ulcers, please apply Ora Heal (Choline salicylate and Lidocaine), Ora sore (Choline Salicylate, Lignocaine, Benzalkonium Chloride with Glycerine and Spearmint), or Dologel (Choline salicylate and Lidocaine) twice a day for five days.

Also, avoid eating from that affected site. In addition, please observe if the lesion goes away in 7to10 days. If not, then kindly revert.

Regards.

Thank you.