Hi.. Can understand your concern.. As per your complain pain in tongue can be due to a number of conditions and causes like Geographic tongue there are any changes over the tongue, Apthous ulcers ,infections like thrush, vitamin deficiency and anaemia, lichen planus, burning mouth syndrome, nerve injury that supplies the tongue( Glossopharyngeal neuralgia) etc.. As you have not described that whether you have any changes on tongue like ulcers, patches or smoothening or pigmentation of tongue so to make the exact diagnosis is a bit difficult.. You should consult an oral pathologist and get evaluated and necessary investigations has to be done to rule out the exact cause of the pain and in case of any abnormal finding on tongue the clinical checkup can help in correct diagnosis.. You can take OTC painkiller like Ibuprofen to relief.. Hope this information helps.. If you find the answer helpful kindly write a positive review and click on found this answer helpful as a token of appreciation.. Thanks and regards.. Dr. Honey Nandwani Arora..