Another Thought? Could be THRUSH .. When I get this my mouth is very sensitive... Burns and such... So you might want to check on that.. We are prone to this due to Dry Mouth..

Hope this might help
Diane

2004 SCC R.tip 1/4 tongue Oct. 2005 R. Neck SCC cancer/Chemo Cisplatin 2x/8wks. Rad. Removed Jugular vein, Lymph gland & some neck muscle. TX finished 1/20/06... B.Cancer 3/29/07 Finished 6/07 Bi-op 7/15/09 SCC in-situ, laser surgery removed from 1st. sight. Right jaw replacement 11/3/14. 9 yrs cancer free as of Jan. 2015