Brief Answer: Descriptive Detailed Answer: Hi, Thanks for the query. Burning sensation over tongue which responded to Gabapentine can be because of some neuraligia or some non specific burning. You have not stated any visible finding on the tongue except a sore near frenulum, so, I suppose that rest of the tongue is visibly normal. Enlarged criminal nerves around mouth is a vague description and you please write down the exact CT description or attach the report. Otherwise this conveys nothing. Also your sore near the frenulum if it is not healing with antiseptic mouth wash is rightly being biopsied. Next course of action for this sore will depend upon the biopsy report. Meanwhile, you should maintain a good oro-dental hygiene, get a dental examination done (in case there is even a small dental problem), use a B complex for few days and a probiotic preparation. Your sphenoid sinus problem will not be related to the tongue condition but can be cause of post nasal drip and this can lead to some discomfort in the throat or oral cavity including bad taste or some vague sensation. Steam inhalation helps in this till the time your get a surgical intervention for that. Feel free to ask another query. Regards

---