I hv had itchy/sore tongue at tip for months. I bite on it or rub against my teeth day & nite (in my sleep). I hv been using Gly-Oxide, 2 - 3 xs day, but really doesnt help. I tend to live w/it & ignore it until I find myself biting it so hard that I cause bleeding or lots of pain.  Saw dentist in Dec, already started probably Oct. She said may b due to stress & the yellow/green color that had formed on top of my tongue was possibly due to meds. (Discolored tongue has cleared). What the heck is causing this itching & what can I do? Im getting desperate.
Thanks for your query, I have gone through your query, the soreness of the tongue could be because of the trauma causing ulcer. Or the soreness could be an authors ulcer, or it can be lichen plans also. Consult an oral physician to rule out these things and get it diagnosed. meanwhile you can use topical anesthetic and analgesics. I hope my answer will help you take care.